Life is full of double standards. So what?
Car tire blows out. I'd change it myself, on the spot. Do I want my wife to change it? She's a doc, figured out med school and all those grody diagrams of guts. But do I want her there on the side of the road changing a tire? Hell no! Don't care what it costs, hire someone else to do it.
Brother goes out with "the gang" in high school. Hot chick drives him home, gives us both a wink dropping him off. Cool dude, you rock. Sister goes out, preppie dude gives her a ride home, drops her off with a wink (to her) and a "see ya babe". Cool? Hell no, I stand in front of the car until he turns off engine, and inform him that me and my 2 brothers will simply kill him if he ever tries to get in my sister's pants, even if it's her idea.
Double standards? What's the big deal?
Plus way back when, an unmarried 14 year old was a dang spinster, and a 18 year old without at least one child was a witch. We don't teach kids responsibility early enough anymore. 14 year old dude gets his 26 year old teacher preggers, he better get a damn job.