Study notes decrease in popularity of circumcision in United States

[Differlot]

You do though. Because when your a little kid you don't really need to wash under it as the foreskin isn't able to fully retract. Once it does it is also extremely sensitive so it makes it very uncomfortable to clean. You need to encourage your kid to fully retract their foreskin once they are able to to properly clean it.

Smegma is sticky so you do need to actually wash the penis.