For the 50+ years (for my Mom) they lived in NYC (Lower East Side of Manhattan) till they died, it did not make sense to them. The costs, and not only in money, would have exceeded the benefits. All the essentials needs were satisfied by a short walk. Although you had to walk outside, some things could be had in the same building!

Now vising them by car was always a hassle for me. Parking was always a problem. Odd/even side of the street, time of day restrictions, feeding quarters into parking meters, vandalism, etc., was always an issue. Parking garages were not cheap, but eventually became the preferred solution or me.