This is so shocking.
If you'd have asked me at 15 if I wanted kids, the answer would have been no. 18, no. 21, no. 27, no. Then I got married. decided I wanted kids after all, and discovered I couldn't have kids very easily. I spent a decade more or less trying.
I finally have children. Being pregnant, giving birth and feeding my babies and being their mum has been the best experience of my life by far. I just didn't have enough life experience when I was younger to make a decision about fertility. I just didn't. Children shouldn't be making these kind of decisions - it's why we don't let children vote, marry, drink or drive cars before a certain age. Why is this any different?