i honestly think it depends on the person themselves and also the family dynamic. also the person who will be cared for if the are still able to have a say what do they want? most dont want anything to do with going into a home and resent the hell out of family for putting them there, others dont want to put burden on their family. im a cna and have seen both sides.
also being a cna i could not take care of my own mother due to personal trauma/relationship with her even tho i have the experience and skill to keep her at home, care for her when the time comes. i will not sacrifice myself, my mental well being. it may sound horrible, but it is what it is.