Much of the senior housing, or maybe I should say housing for people 55 years old or older is located in areas that are not very walkable. Many include the use of surface parking lots and underground garages.
The least expensive senior housing seems to be located in the communities that are the least walkable.
Couples with two cars can move in and drive anywhere they need to go. I am not a fan of that lifestyle at least not for myself. I would rather live in the city, own one or fewer cars, walk bike, or use shared scooters.
Walking is good for the legs and the heart and the brain too. Sure it takes time but maybe that is the reward for growing older, more time for walking.
Cars are expensive, parking is expensive, car insurance is expensive and so is gasoline. Having two cars is twice as expensive.