I spend a lot of my play-time introducing teenagers to TTRPG, usually starting with D&D. (Then, depending on the group and interests, another GM who knows dozens of other systems/games well may step in as we play a Chthulhu variant, or Fiasco!, or LB, or any of a dozen other that I've played a few sessions of but don't distinctly remember.)
The two things I'll say are that (a) D&D rulebooks explain themselves *horribly*, so I strongly contest your "you can give a D&D" point; (b) so much of the terminology and concepts of D&D mirror what they already know from computer games that a lot of th…