You don't need to use any chemistry for shower unless you are greasy, thus no pollution and washing your skin with just water is good for it if not outright neutral. You do you, some people sweat and/or smell more, some people less, some have very social lives and some go out of their home just for shopping or not even that.
And some simply don't care if they disgust others. World is big, no need to bash Americans or any other nation.
> washing your skin with just water is good for it if not outright neutral
Not true, excessive washing even just with water dries your skin plus not everyone has exactly pH neutral showering water. So yes, you can wash every day and then apply lotion/cream or you can just not wash and avoid all of that.
And some simply don't care if they disgust others. World is big, no need to bash Americans or any other nation.