I guess this is just another case of whatever Americans do is the best, and the rest of the world is wrong. But don't listen to me, I'm just an Italian-Canadian...

The reason Jews and Muslims (bet y'all forgot about that, huh?) get circumcision is because their cultures originated in desert climates and getting sand in your dick was a big and painful problem, so they decided to chop off the skin.

Since the advent of pants and underwear, there is absolutely no need for it whatsoever, except for the religious masturbation prevention technique, which of course explains why it happens mostly in the US.

As for keeping it clean, do you circumcized folks wash your dicks when you take a shower? Hopefully.... In any case, that's all it takes to clean an uncut dick.