You think it’s really important to perform an unnecessary procedure. That’s fine for you, but it doesn’t make it necessary. It’s a cultural practice.
Circumcision isn’t mutilation in and of itself, but performing an unnecessary surgery on somebody without consent is.
The advice to wash your dick is a sure sign that you weren’t heavily involved in raising a child. Getting them to brush their damn teeth, wash their hands, and just generally not be gross is hard enough without necessitating a genital check as well.
My kids do all of those things. You’re just bad at parenting, which explains a lot, actually.
Imagine cutting off a part of your child because you aren’t capable of getting them to clean it.