Peter as teacher is a bad idea. It does age him, it takes away the member of the press angle that can get the character involved with crime/corruption stories that street level superheroes thrive on, and only saddlles him with character and plotlines that one can watch on those old ABC Afterschool Specials. The concept limits him, just like the marriage did.

I rdon't like the idea of the Spider-Man character being a mentor to the next generation of superheroes too, mostly because Marvel's next generation of superheroes all suck (excluding Amadeus Cho), and the less we see of them the better.