I am a massive hermit. I still benefit from living right in our city, because now instead of getting in my car to go get takeout, I walk from my apartment to the restaurant to get takeout. This is regular exercise I never had before.
Sure, I'm not out clubbing every night, but I am still better off in a walkable environment than I was before.
The novelty wears off after a few years and with kids it becomes more of an annoyance than anything else.