It's not in general, but the topic here is keeping in touch with your friends and family, not the relative culture shock of moving domestically or international

It's not in general, but the topic here is keeping in touch with your friends and family, not the relative culture shock of moving domestically or internationally. The real metric you'd want is travel time to "home base" in hours. I'm just suggesting that inter-state/country moves are a useful fuzzy approximation of that.