There is a very common pattern of people who go to work to some other, richer country for a set period of time with the sole purpose of making enough money to achieve an objective back home (provide for family, buy a house, retire, etc). I don't know how common this is between H-1B applicants, but it's extremely common in the EU for example.

in the EU there is no need for any visa (within member states) and essentially it's a desired feature of the EU.

Another point is that speaking the local language in a richer country of the EU is less likely than speaking English (with English being official only in Ireland and Malta), so it's harder to settle - esp. with kids and school.