TTC under 20

I saw that is a group on here and I think under 20 should not be TTC, I stupidly got pregnant when I was 16 and while I LOVE my daughter like crazy if I wouldn't have been so careless and had an accident I would not have devised on my own to have a child as a teen. I feel like 1) you have to grow up so fast 2) you don't get to experience college how you should 3) its to much responsibility for someone who has yet to learn how life is. What are some other people's thoughts on this?