Thanks for your advice, guys, I'll give them that government website. They are in their early 60s, they have looked into medicaid, not sure what was up with that, I think they are a bit too young or smth.
I too wouldn't want to live in the US. I actually gave back my green card because I didn't want to live there. My mom, however, grew up in the US and was forced to move when she was 9. Ever since she has had the dream to go back, and since she won the green card lottery she wants to even more. I'm not gonna stand in her way on that, even if I think it's a stupid idea.