Suggest that you apply to a few places.

What is the problem?

I don't know why i am getting a negative rating. is it wrong to ask such question? or this is not where to ask?

Down votes are difficult to understand quite often. Don't worry about it. But the way to find out if you can get int a bachelors program is just to apply and see. I doubt that age, alone, is much of an issue.

You wouldn't have been in the top five oldest students on our course this year.

You'll be 47 whether or not you get the degree.

See 90-year-old graduates with bachelor's degree and Ms. Finnerty, who has just completed her bachelor’s degree in Human Services with the highest academic honors, is 91 years old.

At my university, not long ago, a student who was 82 years old completed her PhD degree.

The downvotes are probably because questions about undergraduate admission are off-topic.

academia.stackexchange.com/questions/3426/…

If you don't need the piece of paper, why on earth would you pay for it? If you just want to learn, pick up a book.

Why do you think this might be a problem? Do you think you'd have difficulty getting accepted anywhere? Do you think you'd struggle with actually doing the work involved in getting the degree? Do you think you might be judged by your classmates or others (not that this should matter)? Do you think it wouldn't be all that valuable professionally (but you mention mainly wanting to expand your knowledge, so I guess this isn't applicable)?

@J... Some people prefer learning in a more structured setting and don't mind the expense much (or they're in a place where further education doesn't cost 2 arms and 14 legs). It may also provide access to equipment and resources that aren't as easy to gain access to with self-study.

@NotThatGuy Four years of tuition fees can buy you a lot of equipment.

@J Outside the US+commonwealth, four years of tuition buys you a high-end laptop. But more importantly the most valuable resources you really cannot access any other way. That money can't buy the chance to learn from, and exchange ideas with, experts in the field. Nor can it buy lifetime access to pretty much all scientific journals, or access to the vast inter-university library system.

I would add that, in my experience as someone who was a little older than the run-of-the-mill student (around 30 when I finished my BA) and as an instructor during my time in grad school, instructors appreciate more mature students who take the class a little more seriously.

As others have said, you will be 47 with or without a degree. I would ask: what are your goals? What is valuable to you about a degree program, what are you hoping to achieve? If learning alone, auditing the classes may be less expensive. If you do well in a structured learning environment and may need support, a degree program could be good. If you want credentials, a degree. Consider the prerequisite classes as well, including distribution requirements (I HATED Art History 101: rote audio memorization).

well, i wish i could spend a lesser time; i.e 2 years