Why didn't I or why don't I?

I didn't because I'm a self-taught artist like many others who have been drawing since they can remember and have the natural talent already. It's not like I woke up one day and said "I want to be an artist", and decided I should go to school for it.

I'm actually considering art school.
Not so much to get into a career, but to help my level of discipline regarding art work, and to further myself as an artist.
Another plus the the idea of art school is I've been looking towards finding other artist I can meet and collab with, it's really one of my dreams I still have, and I think meeting such people at an art school would be fulfilling.