The 14 year old is a bit more understandable but 14 year old was an adult in society for, hundreds, thousands? Of years in our race. The only reason we need those laws today is because of terrible parenting in our society. Do you think a 14 year old noble would go around wanting sex with some guy? No.
Anyway, if they're old enough to get pregnant they're obviously old enough to have sex according to nature. Would I touch one though? Probably not. I prefer my wimmins older than me.