men prefer 18 year olds not because they are gullible, or easy, or immature, but because they are at the peak of their physical attractiveness.  women peak right after they finish puberty in terms of sexual attractiveness. this is also their peak fertility, unsurprisingly. normal age for puberty is 9-14, and it takes 4-5 years, meaning women peak between 14-19 depending on when they begin puberty, with 15-17 being most common. it has nothing to do with taking advantage of anyone, and everything to do with what makes the penis hard.
Canada