True, but so do I, if I do it.In which case she faces a loss of time and energy vacuuming the room.
It is not my chore. BUT. I am her daughter, and I live here. For cheap rent. So, I am expected to "help out" in various ways. Vacuuming the living room is not something I am expected to do, but if I do it, I am helping out. If I DON'T do it, and I don't do anything else either....I am taking advantage.
So, somewhere in there, is a moral obligation for me to look for opportunities to vacuum the living room. And if I DO....just think how happy my Mom would be! Shouldn't I do stuff like that just to see her happy? Just so she won't have to do yet another chore when she's sick of them?
Refraining from tripping my Mom while she vaccuums the living room doesn't really seem good enough there.