I often tell people to watch out for selection bias. Immigrants are a distinctly unique people. They're not just members of their foreign racial/national group, they're members of their foreign racial/national group with the ambitions/motivations to leave. To make the abstract concrete. Canadians living in the US are often thought to be "just like" Canadians living in Canada. But they're often not. Often they're the…
But this is also important to note, as the common zeitgeist of the day says that upward mobility is impossible, but it is clear that with ambitious and effortful parents, children can have higher rates of social mobility. That is encouraging?