I bought myself a $400 bidet for my birthday 6 or so years ago. It’s totally cured my hemorrhoids (and my wifes!) which were a major problem before.
South Park recently had a very funny (and tame for them) episode about toilet paper and bidets. Obviously it’s fictionalized but a combination of marketing and non historical usage keeps people in the US from widely adopting something that would be hugely beneficial to them.