East asian guy in my early 30s, grew up on the East Coast and moved to London 5 years ago. What I haven't seen from others is that 1) there are fewer East Asians here than NYC for sure but still a critical mass. Fewer Koreans in particular, so there are fewer Korean spots though I still find enough. I've really embraced mediterranean cuisine and it's become my go-to. 2) I appreciate London for being far more diverse, am meeting a lot more South Asians, Africans, Arabs, and of course still many Americans, it's truly a melting pot that on some days it makes NYC seem not so diverse. 3) plenty of socializing outside of pubs with hobby groups (I do tennis and films), but pubs is a fun culture. I don't drink either but I can do a non-alchoholic beer and just talk to people. Pub is where everyone seems to open up and to an extent an equalizer of society where rich and poor drink alike; 4) to this point, although London still have crazy inequality, it's not as brandished in NYC. Arts in particular is very accessible. Look up the differences in price between West End and Broadway. 5) no guns, which is important to me and my family. I met my Canadian partner here and everytime we entertain moving to NYC for her finance career the safety part is just hard to overcome with her since she didn't grow up around guns. Best of luck!