I would like to point out the long term prospects part may not be true for high earners. Some models make a senior software engineers annual salary in a matter of months. Many of these people can retire and live off investments at age 35.

Perfectly fair point! Although when I've seen OF stats published the median model makes like $1,000 a year or something. So I think if you took even the top 5,000 models out of the computation, most of them are not earning enough to pay for a nice lifestyle in the moment, let alone funding retirement by the time their beauty declines.

What I think is more likely to happen though with an immigrant OF model (who isn't in that elite earning tier) is that she meets a partner in the US, which affords her an exit strategy if she doesn't want to (or can't) keep doing OF forever.