Yup, M-I-L is in an assisted living facility (with her own apartment/room); it's by far the best thing unless you are restricted by cost.
Prior to that, we had her living in her own place with a full time/live in caretaker. It was a disaster. Two old women fighting non-stop because there was literally nothing else (except television) to do. My wife got a call almost every day with some silly problem.
Now, she at least can eat in a common room with other people around, even if she barely socializes with any of them.