Hello, I just came across this question and can't believe no one has answered it! Perhaps it is because they don't want to violate Fair Housing rules? So I will recommend a couple of great towns where it is not necessary to have a car (that is a more diplomatic way of saying what you are saying) AND have great restaurants, boutiques, train stations to get to NYC, and cultural events/destinations.
In Somerset County, Raritan Boro and Somerville. These towns are very close to a fantastic mall, Bridgewater Commons. There is even a non-vehicular bridge over the highway from Somerville to the mall. In Union County, Westfield. In Hunterdon County, Flemington. Morris County: Morristown. Essex County: Montclair. All of these towns do have communities where homeowners above certain ages ( 50+, 55+, etc.) predominate by design and qualification. As well, there are plenty of other housing options that are not age-restricted. You might also like Short Hills, and of course they have arguably the most famous mall on the East Coast!
If you are still interested, I would love to talk to you. Reach out to me and I can send you specific listings.
RE/MAX Preferred Professionals
Bridgewater, Somerset County