So, a serious question concern I have about bidets is: how reliable are they?
Because as simple as a basic toilet is, they (like all plumbing it seems) are more of a PITA than they should be. Flappers and valves wear out, levers crack and break, floats need to be adjusted, and god forbid you have to replace any of those random pieces after 10 (let alone 20-30-40...) years because oh that particular bespoke part/brand might not be made, and the ones available don't fit 100% but could be close enough, maybe, for how long? Thus you either have to frankenstein a mousetrap and pray it works AARGH or throw the whole damn toilet (or larger subcomponent) away just for a tiny $2 part.
So what is the brilliance of taking all of that, and adding things like motors, pumps, nozzles, pressure control valves, and possibly electric elements like heaters and controls? Those are more maintenance and failure modes and "oh we're sorry that particular part is not made anymore" discussions. I have visions of hard water like we have here in KY calcifying the nozzles and pumps. And needing maintenance or replacement. Or the various seals for those appliances causing leaks at some point. And not being fun to replace.
I mean, as aggravating as a toilet can be to work on, at least they CAN and DO last multiple decades without needing much. Somehow I can't see a bidet lasting even 10 years before causing some sort of problem and needing to be replaced. "Oh your heating element finally burned out, have fun replacing that if it's even still made"...