What an odd comment. You don't need to move out of the US in order to reduce how much you drive, or live somewhere your kids can walk to school (source: me). Expecting people to make such a drastic change for fairly minor lifestyle changes isn't realistic.
Also, I don't think it's fear that prevents Americans from moving across the world. I think it's more related to, they don't want to leave their family, friends, and life they've been building for the last 20-60 years.
You're also not allowed to simply move to other countries. You generally need to get some type of work authorization if you want to be able to get a job. This isn't available to everyone, and can often require proficiency in the native language.
Yes, this is why I referenced visas that might be attainable for people who can't go the usual "I work in tech and have companies courting me at every turn" route.
> I don't think it's fear that prevents Americans from moving across the world. I think it's more related to, they don't want to leave their family, friends, and life they've been building
You aren't wrong but it only applies to the minority who could afford the expense of an overseas move.
Moving across town routinely costs the equivalent of 2-6 mos rent and most Americans would struggle to manage that.
Also, I don't think it's fear that prevents Americans from moving across the world. I think it's more related to, they don't want to leave their family, friends, and life they've been building for the last 20-60 years.