>You DO know that the "teenager" is a relatively new invention
>right?
>Age of consent being raised from 13 yrs old is only something
>that has happened in last 100 yrs or so in the US

Because theyre still fuckin children, and research ( probably done within the last 100 years or so) suggests that their brains are not fully developed and that they're more inclined to make bad decisions, because they're still children. It's primitive and archaic for men to date children and im glad were making attempts to discourage that practice.