You can also include that mobility is hard. The high housing prices that some seem to think is a good thing makes it harder for people to move. Similarly the

You can also include that mobility is hard. The high housing prices that some seem to think is a good thing makes it harder for people to move. Similarly the idiotic health system also makes changing employers or locations harder. The public school system is also contributory. Dual income households are the norm also hindering mobility. The networking infrastructure is also pretty terrible in most places (little choice, low speeds) which makes remote working less feasible. That contributes to making it harder for supply of people and the demand of positions to be matched when not collocated.