OK, so Dear Abby today has a letter from a 13-year-old girl who wants to not drink until she's 21 and keep her virginity as a gift for her husband. But "Jon" is said to want to ask her out on a date, which many of her friends are doing, but which often means, "Hi, come over to my house when my parents aren't home, we'll get drunk and have sex." There is, said girl informs, already a 12-year-old gi...rl on her school who is pregnant. Abby's advice? If Jon wants to date you, he has to come to your house, meet your parents, and have them establish firm ground rules with him. How about, "You're 13! You shouldn't be dating! Dating's to figure out who you're going to marry, when you're old enough to emotionally and financially meet the obligations that institution brings, and ours is not a culture where 13-year-olds marry in the first place!" Is this what contemporaries at the end of the Roman Empire witnessed and felt like? Who needs barbarians at the gate? We have met the enemy, and he is us. Insane.