The ocean is a marvelous thing. You can bathe in it, wash clothes in it and always find food in it. You can’t drink it but you can if you have have a desalination system. It’s also nice to be somewhere that you can’t freeze to death. You might get hot in the summer but you can always cool off in the ocean and find a spot in the shade. Plus it’s warn enough to grow vegetable and fruits year round. I’ll take warm over bitter cold any day of the week.
I would love to live right near the ocean. Too late now; would have to sell property and buy somehwere else. Couldn’t afford it anyway... At least SW OR doesn’t get very cold, compared to many places in the US.
Stay in the salt breeze if not actually oceanfront in a swampy, tropical climate such as that. Disease and the critters that serve as a vector will become a problem again, in the event of a breakdown. Everyone wealthy enough to leave for the southern Blue Ridge during the summer did so, back in the day. From Charleston, Savannah, Mobile, all the old southern lowland cities. Worked at several mountain resorts while in college, that had their beginnings as summer retreats for exactly that reason. Well, the heat and humidity too, but they go hand in hand.