People over 40 are perfectly capable of using their legs. If they used them more often, instead of hopping in the car every time they needed to go a mile or two, maybe they would remain healthy longer. Cities typically have transportation programs meant for the elderly and disabled, if other public transit is unable to service them.

I shop with my car maybe once a month, tops, and that is mostly just because I like to buy dozens of liters of seltzer water.