Water from a properly-functioning bidet certainly does provide water and water abrasion, since the pressure is far higher than an open pipe. In fact, if a bide

Water from a properly-functioning bidet certainly does provide water and water abrasion, since the pressure is far higher than an open pipe. In fact, if a bidet is activated full-blast without someone on it, it will typically reach the ceiling. Furthermore, almost all detergents will damage the anus, so that is not something desirable for this application; even those detergents that work for some people will cause excessive dryness of the skin for others. If one is willing to use their hand to provide abrasion, merely poured water enables far superior waste removal than toilet paper. This can easily be tested by using swabs and agar plates, which I did in my childhood to my own satisfaction; I'd be surprised if peer-reviewed experiments haven't yet confirmed this, but I haven't looked for them either.