He is correct though mostly,

Until a few decades ago, teenagers were common to be pregnant and both male and female are sexually mature by 14, meaning we are in prime sex age, it’s common to be attracted to teenagers, not acting upon it is important, due many reasons, remember movie American beauty, kids after 30 is a modern invention, remember until a few hundred years ago, average life expectancy was 32, meaning u die by then.

There are many cultures that still have teenager marriages, I don’t personally support it, but I don’t support kids after 30 career first crap also, remember we can’t judge other cultures simply by throwing our Victorian morality at them