My son has lived and worked in S Korea for over 20 years, his wife is from Russia. They can't wait to get back to the US.
My husband has worked all over the world including Indonesia, you are foolish to give up your American citizenship. He has friends who own 1/4 million dollars houses in Thailand, they cannot buy the land underneath. He is constantly being held hostage by having his water turned off and being required to pay money to get it turned back on. At times he can't use the road to get to his home until he pays money.
Also there have been times with civil unrest he can't go back to the country for awhile. Why you think all this is so very romantic and everything is so much better, well folks, wake up and smell the coffee. Lack of infrastructure, social services and other services only available to the very wealthy might be a real surprise. The pollution and the corruption is very bad in so many other countries.
Also in the Phillipines and many Asian countries there are big issues with islamist rebels, there is a lot of insecurity. Think very carefully before you abandon America.
OK, so off the bat, I'll acknowledge that there are some countries where corruption, land ownership issues, and safety concerns are real. There's no doubt about that. I'm sorry your son has had this experience and hope they find someplace they feel safe and happy soon.
That said, this is an anecdote, not real data. Equally anecdotally, there are hundreds of thousands of Americans safely and happily enjoying retirement in low cost of living countries, with little or no issues.
Regarding "big issues with islamist rebels," my response here would be that our media vastly overestimates the scope of unrest in most countries. Example: I went to Egypt late last month/early this month. We experienced nothing but calm in our travels, no interference from government officials, no violence or protests, and generous and kind behavior from everyone we met, even when doing the "haggle our way out of foreigner prices" thing. They found an improvised explosive device in the airport the day we left, and there was a bombing killing two locals in Alexandria, where we had been a couple days before.
Are these facts scary, and should they remind one to maintain awareness and caution? Yes, absolutely! However, in speaking to a lot of locals, they likened the fact that this kind of thing appears in our news to stories painting New York City as a crime ridden hellhole where you're likely to be robbed and killed in their own. The media blows some issues completely out of proportion because it gets ratings. In my own city (one of America's safest large cities) there is a bomb squad and improvised explosives are regularly found and destroyed, because people are crazy. That doesn't make local news, let alone international news. The point I'm trying to make is that we should be aware of media reports of unrest, but that it should not prevent us from visiting or even living places.
Further, there are a lot of countries that are stable, relatively low corruption (or at least at acceptable levels when it comes to foreigners), AND inexpensive. Each person has to evaluate their own comfort level and I agree with the idea that trying a place out before moving there is prudent. I just don't think we should write off living in a place because it's challenging, and I think we owe it to ourselves to at least try to disentangle the reality from the media bias of countries that have real problems, but real merit too.