I mentioned Dude Wipes to my wife, and she said that they were popular with the young teens she works with. Apparently they're not for your butthole specifically, but just general cleanliness wherever.
I remember reading somewhere that men's buttholes are tougher than women's and therefore more resilient to anal sex. It was in a thread though where feminists were complaining about anal sex being degrading and potentially injurious for women, so take it with a grain of salt.