You have to define "visa free" I have flown staright into Canada, Mexico, France and England just a glance at my passport and I was on my way.I don't think this is applicable in a "visa-free" environment. There is no screening of anything when you arrive in over 100 countries as an American
But staying permanently would be difficult because they require paperwork. And even this is an easy hurdle to climb in most of the world with a small bribe or two; however , the bribe system is inaccessible to normal people in eu or the former British colonies or America's Asian puppets .
In Kenya, Tanzania the DR and Colombia I either had to fill out a paper visa form or an electronic one. I had to fill out the form with migration Colombia almost a week out, so if they didn't want me to come they could've stopped me.



