yeah but this doesn't even mention older women having higher chances of birth defects either, which is what you claimed. in fact, at one point this study suggested that teenagers have a harder time giving birth due to lower weight and undeveloped body. here, have a look at this: https://en.wikipedia.org/wiki/Age_and_female_fertility
"There is no evidence of an overall increase in congenital malformations among babies born to teenagers."
"After puberty, female fertility increases and then decreases, with advanced maternal age causing an increased risk of female infertility."
it also mentions that fertility is at its peak during a woman's 20s because that's when their puberty ends. at one point you said that
So yes it is normal for men, even older men, to be attracted to 15 or 16 year old girls who've gone through puberty.which is not true at all. some girls don't even start their periods at that age. you've gone through your puberty once you hit your early 20s, but at that age they're actually at their peak of puberty.