This is a big deal, but no one wants to think or talk about it. You can start to experience this by just taking a shower immediately after anything that would normally require a bidet (read: toilet paper... or kleenex). It's quickly realised that this means a LOT of time wasted taking showers and clothes-changing to stay clean in only two areas. And I'm sure everyone shaves often enough so that nothing sticks, right? It then become annoying, as this is entirely a solved problem from the engineering side (very much "not invented here"). I don't even use toilet paper any more. However, I live in an apartment and can't afford one of these washlets anyway, yet I very clearly see the advantages.