Another halachah is that when you settle in a new community you accept its halachic norms. By not doing these things you are following a different religion from Judaism.
Where do you dream this stuff up?
Actually this is the Halacha, However I dont think it applies after World War II. Before WW II if a jew from Poland moved to Turkey he was supposed to follow Sephardic customs. I think after WW II the communities were all broken up and reformed in the US and Israel for the most post
However if you moved to Amsterdam , you can wait 1 hour between milk and meat