But countries that offer residency do put you on the healthcare system. Serbia - 50K apartment = path to residency. I'm not sure if they have a public healthcare system, but if they do, you're on it. You can work and start a business legally. People got into trouble with the nominee issue in Thailand. Again, depends how deep your pockets are. And maybe you don't want to start a business in retirement. One guy not far from me is running a restaurant. Must be in his wife's name. Not a problem if you marry the right woman and stay married, but more complicated than in places with residency. One Youtuber was in Chiang Mai, then moved to Albania to start a cafe. I guess he didn't like the business rules. Maybe his wife was American, not sure.