Double edged sword. The shift from 20s to 30s also reduces attention from perverts and weirdos, just as it does from gentlemen suitors. And if someone joined a

Double edged sword. The shift from 20s to 30s also reduces attention from perverts and weirdos, just as it does from gentlemen suitors. And if someone joined a site back when they're a minor they often had to lie. Or if someone is just privacy conscious about details that may be used to steal their identity, they may have just randomly chose January 1, 1970 or whatever was the top choice on the little menu.