> If one is willing to use their hand to provide abrasion, merely poured water enables far superior waste removal than toilet paper. Trouble is, you then have

> If one is willing to use their hand to provide abrasion, merely poured water enables far superior waste removal than toilet paper. Trouble is, you then have excrement on your hand. So perhaps there is a trade off between having a clean butthole and a clean hand? Another benefit of toilet paper is immediate feedback - you can wipe and inspect the paper, then repeat with clean paper until you are satisfied with the result. With poured water, how do you know when you are 'done'?