Well, yes if you're a retiree then thing are always a bit different, but the cottagecore lifestyle is about raising a family, not retiring. Ironically, the Isle of Wight is still a great example. It's a lovely place for a holiday, and a great place to retire. I spent a weekend there a few weeks ago and had a great time. Lovely landscape, beaches with dinosaur footprints and loads of fossils, great pubs. I recommend it! But it's really not a good place for a working age family. I'd never choose to live there.
There's a reason it's among the most deprived areas in England. It's badly isolated, with a crazily-expensive ferry the only connection to the mainland. The jobs are working in tourism, agriculture, or at the prison. Housing is totally unaffordable, because of all the second-homeowners, holiday cottages and – yes – retirees. The story is the same in many tourism areas.