[hoosier2gator]

Your response ignores the fact that if you got shit anywhere else on your body (e.g., your elbow or your back), you'd likely use soap and water anyway, even if you don't touch your elbow to your face, door handles, etc.

Also, the argument isn't necessarily about preventing something bad from happening, it's also about just feeling clean. People who have not tried a bidet cannot really say whether they would feel better/cleaner with TP or a bidet. It's like if you tried to explain to someone who has only ever used wet wipes to bathe that a shower makes you feel better. Sure, wet wipes may objectively clean you but those who have used a shower can speak to the subjective benefits of feeling nicer.

The counterargument that "TP works well enough" is not a very strong one to my mind, if there's something that works better with no real downside.