It's a place where you should be polite because you never know if that frog is a talking prince, or if it just met a couple and picked up some things.
It's a good place to go questing --find a princess, find your honor, lose your nephew so you can get membership in the Right Honorable Wicked Stepmothers' Gambling And Debating Club (Stepfather's Division) (though it's mostly wicked uncles).
(In a forest where ALL the stories are true--for values of true which may feature very poor reporting--things get a little silly... but not the people involved. Everyone's problems are serious to the person who has them.)
Now, in the book series I'm loosely basing this on, the casters called wizards are a very specific kind of caster: their staves absorb ambient magic (which makes dragons sneeze), and they store it as spells in their staves to use later.
There are MANY other kinds of casters, but none of them want to be called wizards because wizards are almost universally kinda dicks.
(Probably comes from absorbing magic instead of making it themselves.)
A redemptive character arc, perhaps?
Lost his staff when someone melted him (wizards melt in soapy water with a bit of lemon, but it's not permanent; just takes a few days to put yourself back together) and hid his staff to slow him down. While questing for the staff, he meets Our Heroes and joins up with them.
(One person alone in the forest attracts less attention, but something always notices you eventually... and when it does, you'll be happy to have companions to deal with it.)
Don't worry, soapy water with lemon juice isn't a commonly known weakness, nor is it easy for people to lug around in buckets through the forest.
(Witches may generally melt in water, it's never shown in the series. The only witch we see very often has such a clean house that she doesn't melt in soapy water, at the very least.)
(every now and then she gets nasty letters from more traditionally-minded witches, suggesting that maybe at least one of her cats could be black.)
Yeah, the Forest is filled with people who are fleshed out enough in their own right, and tropes and stories that are generic and familiar enough, that just wandering around I can throw stuff at you and it'll aid or complicate your plot just as easily as it would anyone else's.
So long as your character fits into some fairy-tale type of concept and has something he's looking for (physical or metaphysical), he should fit in fine.
Canonically, wizards and staves are unique to each other but we never learn the details.
(And it could be that wizards don't use each others' staves just because wizards are so paranoid that a staff usually has a half-dozen REALLY nasty protection spells on it.)
But yes, I'm just using the book canon as a loose inspiration point.
If a wizard's staff is destroyed, people freak out and start backing away from whatever powerhouse managed it.
...fire witches, and the Sword of the King, can manage it on a good day.
Fire witch magic is, for reasons unknown, incompatible with wizard magic.
Trying to absorb a fire witch's magic tends to give everyone involved a bad headache if they're very lucky.
And the Sword of the King is the symbol of office for the King of the Enchanted Forest. The Sword itself is tied directly into the power of the Forest and basically is the Forest for most purposes.
The King's current wife was a princess from a neighboring kingdom who ran away from an arranged marriage. She volunteered to be a dragon's princess, and met the King while she was trying to save the King of Dragons.
"Disgraced" is a bad trouble, but a decent part of a high concept.
Maybe add one more thing to it.
Is he an underdog wizard who does what others tell him to? Maybe he's a Disgraced Lackey Wizard. Is he in his dotage? Might be a Disgraced Wizard Past His Prime.
And remember, you can imply things instead of stating them outright. If he's a Disgraced Blue Academy Professor, you've implied that he's a wizard if we know something about the Blue Academy.
Antorell was the Head Wizard of the Society of Wizards (which would probably also be his high concept), and his son Zemenar's high concept would probably have been Bumbling Son of the High Wizard.
Nothing to say there aren't proud families of wizards.
His underwhelming magic has always been more of an annoyance than anything to the other wizards, so they melted him and fired his staff into a volcano or something.
Okay, I'll give you a scenario and you think of a way to complicate it with the Trouble concept you have in mind (not necessarily the specific aspect you've written down).
You step into a clearing in the forest and hear weeping. A comely princess sits in a patch of clover, her skirts pooling prettily around her as she sniffles daintily.
"Woe is me!" she exclaims, looking up at you with watering dark eyes, "for mine is a terrible plight! I was to meet my paramour --handsome and strong, with a shield as stout as his heart and a sword as shining as his wit-- but he has not yet come! I fear he has been devoured by some beast! Wilt thou aid me in my distress? For mine is a terrible plight!"
Your Trouble should be such that it can be used to constrain your character's actions so they complicate his ability to achieve his goals.
Charlin the Mundane is Rejected by Destiny. I'll compel him to eagerly accept a chance to be part of a romantic tale, or to be envious of a couple so obviously destined to live Happily Ever After.
Flurf gets compelled to rifle through her purse, as It Was Just Lying There.
"Because <trouble> is true, it makes sense that you'd <complicating action.>"
Knowing that in this particular area of the woods, the guy was probably ensnared by fay and knowing that it's likely way over our heads, am I still likely to say "oh don't worry, we'll have him back by nightfall"?
I guess it could provide some comedic value to promise that we'll have him back, and as we're traipsing off into the underbrush, be telling the party all about the horrible things the fay do to intruders
It could easily be a trouble, which is why it's always interesting to see what people actually choose as their trouble.
In this case, you want his inferiority complex to drive the plot complications, and his bookish worldview to be more of an asset.
Both can take on the other roles as appropriate, but by making one an aspect and one a trouble you're telegraphing the general shape you want your character to take.
In the source material, magic comes in many different varieties that are more and less compatible depending on which comes into contact with each other.
How's this for a stunt? "Because I Talk the Talk, I get a +2 when I cleverly create advantages when in-depth knowledge might be impressive or helpful."
On a more serious idea, the magic of his village might be tainted, and rather than being Rejected by Destiny, he might have been Protected by Destiny...
Framed another way, we're looking at lost identities: a wizard without his staff, a man without his natural form, and a youth without his family traits.
@MaurycyZarzycki I think we decided something like, I can invoke it when I could use book-smarts in a situation, and he could compel it to mean that I have knowledge, but struggle to apply it, or dismiss something because it doesn't match what I've learned