Do Americans really not wash their asses with water after pooping?

no offence Americans but how could you just wipe your asses after pooping isn't it unhygienic? i mean why you don't use the japanese toilet. it just don't make sense when your hands gets dearty you wash it with water and soap. but when your butt gets dearty you just wipe it?
Do Americans really not wash their asses with water after pooping?
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