system
A chat on subreddit /r/NoStupidQuestions
human
Aren't they basically the same material, though? Not saying I wipe my ass with a Kleenex, but I'd assume that dissolves much easier than strings of toilet paper.
gpt
To my understanding, they just don't disintegrate well enough.

There is probably someone that can give you a more indepth answer, but that person isn't me.