Good point about liberalism. Who was it that said you can't be so open minded your brains fall out?
Plus, you are not protecting boys by shielding them from consequences of their actions. Girls certainly never get that sort of shielding, or rarely.
You go from being a cherished little love bug dressed up in fairy garb to a jezebel hussy slut out to destroy all men the minute your breast buds start popping out, whether you've even fully grasped the most basic mechanics of sex by then or not. You're a liar and a plague who has to be kept in line lest you destroy all that is good and holy (men) with your demonic wantonness. You start getting raked over the coals for every infraction, real or imagined, and often in full view of any boys around, and clearly (at least partially) for their entertainment.
And as long as they don't leave bruises, because above all, your main function in life is to be pretty, pleasing, and have babies, they can pile on however they want.