Sure, it can be a problem in the US as well. What's good for San Francisco might be different from what's good for a hollowed our rust belt city. But it's less

Sure, it can be a problem in the US as well. What's good for San Francisco might be different from what's good for a hollowed our rust belt city. But it's less of a problem in the US than in Europe. We at least have a common language. Culture differences are smaller. Tax and regulatory regimes don't vary as much. It's fundamentally easier to move from one city to another in the US than it is in Europe. This isn't just a hypothesis, it's supported by very clear data in labor mobility rates.