We observe what seems likely a very typical dialog between two adult sons of recently-retired-and-moved-away parents. At least, one side of that conversation. What we can see indicates kindness and reasonable concern.
Paul: They, and we, should also realize that they each have certain traits which at their age will never change and they should stop trying to change each other.
Mom always was a "house" woman and there's no trying to change her now. Pop should try and suggest from time to time, but not insist to the point of argument. At least Mom is in a good climate now and if she does not go out as much as the other women —so what, maybe in time she'll catch on. But if she's feeling better and comparatively good –witness her strudel-making urge–then we have already accomplished much– and just let her run her daily life as it pleases her.