I did that with my grandmother after she had a stroke, and I would not have offload that to a robot, had one been available. It wasn't nice, but not everything in life has to be nice. What was important to me is that she felt loved and dignified. That's also why I combed her hair while waiting for the ambulance on the night of her stroke, even though she had peed herself on the floor. She always mentioned taking care of her hair should she ever have an emergency, so it was important for me to do this. Given how lousy having a stroke is, at least she got some comfort knowing I had been paying attention all the times she said that :)

I certainly don't judge you, but I wanted to offer my perspective.