A robot that could wipe after using the toilet (admittedly fairly easy with modern-day powered bidets), clean someone up, help them shower, etc. would actually be a really big deal for care of the elderly. Currently this is a job a human has to do.

It would allow elderly to regain a certain amount of independence. Often they start having trouble with just 1 or 2 of these tasks, but then a home health aide is needed or they have to get put in a nursing home. The cost of this kind of care is $5000 - $20k a month. So there's a lot of money on the table for a good robot.