Huh. Had an opposite experience. Boston locals have their families and friend set, if you don’t have 3 generations in the local cemetery you’re not “from there”. Very closed.
West coast is all chain food. Meh.
The best restaurants are the local ones in NY and Boston.
NY? Everyone was chill. That said, the idea that Bostonians are unfriendly isn’t true. You get them talking and they're your bestie.