From about age 10 - 16 men want to see naked women (Probably afterwards but not to the same extent at least for me anyway).
At least in France every now and again you see just walking about posters that have naked women on them in plain view. I think if you were exposed to that sort of thing all your life you would be less likely to seek out porn. (If that is what he wants I dunno).
I still think seeing people naked (Or having sex) shouldn't have a higher age limit than seeing someone blown to bits.
That is what annoys me about Western politicians they never state what they want to achieve. (If they want less exposure of young people to unnatural / degrading treatment of women then what they should do is find something that they think is ok and make that legal.
Japan has the right idea. Problem with women being groped on trains. So they start offering a grope train where you can pay and grope to your hearts content (By women who are ok and paid to do allow you to). Got rid of the problem overnight.
Germany is probably in between. Whoring is ok there in a controlled manor.
(I have never been to either. I have been to I think 2 strip clubs and I hated it both times but it was a stag night and I was pressured into doing it.)