My parents were snowbirds in a pretty low cost, 55+ community in central Florida (away from both coasts) from the time they were about 65 onward. Dad passed at 83 and Mom's place is up for sale right now, as we work toward her exit from the community. They owned 3 different places in the same community. It is a mobile home community consisting of about 150 mobile homes.
They LOVED living there. I never thought of my parents as being all that social, but after they retired, they became very social. I guess they just never had time to be social while working and raising us kids. They fully embraced the group dinner outings, weekly Monday coffee gatherings, Bingo, group cruises, holiday feasts in the club house, etc. Neither of them were into sports, but the community had golf, card game, shuffleboard, horse shoe, and water aerobics groups that kept the others busy. There was not an on-site gym. Lots of residents would ride their bikes up and down the relatively quite/isolated streets of the community.
They both become well thought of in the community and both served on the HOA Board and various committees through the years. Dad was known as one of the "always ready to help" guys in the community who kept busy helping neighbors with various projects in and around the homes. Owners are responsible for their own lawn maintenance, and Dad did that for a few years and then hired a "service" to do it. The "service" was an 85 year old guy in the community who loved to keep busy.
The park itself was 55+ and no pets permitted. I would guess the average age was more like 70-75. There were a few in their 50s/60s, but not a lot.
Central FL offers warm weather without paying the price of coastal living. Mom and Dad really never had much interest in beach living. And they didn't have a huge budget and they lived quite frugally. Sebring, FL offered them pretty much everything they wanted for a reasonable cost. As snowbirders, they kept their official residency in PA.
I'm thankful that they had 15+ years in the community as it really was something they enjoyed. They spent 6 months a year there and 6 months in PA. Mom made the decision to put her place up for sale this year partially due to the complexities of COVID, but also because she was starting to sense that being down there on her own, away from her family was becoming more risk to her health (even for non-COVID issues) at her age (82). We've had the place up for sale for 3 months and there hasn't been much activity on her place or any of the others up for sale in the community.