Terminator's got a point... and well those anime girls which are said to be 18 look to me like they're barely 14 (in some animes, not all). But (big but) considering the culture of some people (child marriages) and even the past of western civilisations (I'm pretty sure most still allowed 20ish if not older men to marry girls which were 12 or over, in fact if I remember correctly a girl was classified an old woman if she wasn't married by 19) we can hardly be surprised as it's something deeply engrained in society today and thus will take quite a while to root out completely (though if you ask me in certain situations genuine love between a 14-15 year old and someone older, IE 20-25, is not only possible I have actually seen such cases in my life which to be frank to the law beg for a trial but to those 2 individuals it doesn't matter so the law itself needs to change quite a bit as right now it is too much of an area affect weapon deal).