I’ve seen groups of women making jokes about how big and making predictions about his future where I knew, as a man, DON’T jump in and say, “Oh WOW – dayummmm”
But fiddling with the diddles? A bored ‘flick’ by a slightly sociopathic babysitter I could see while changing nappies as payback for that extra long cry session earlier, but I doubt any kind of systemic abuse of this nature is common. But maybe? Who knows.