Being in the same situation in a different country, but a couple of years older: In my experience you never will be fully accepted by everyone. You will be the Polish guy in UK and the British guy in Poland.
You can identify yourself as what you want. You must learn that people have the right to have their own opinion even though it is wrong or opposed to yours. You have to learn not to care and live your life as a nice person. It doesn’t matter at all what others think as long as they don’t hurt you.
My house is operating at around 3,5-4 bar after the pressure regulator. Since I have no gauge I can‘t deliver the pressure of the supply. I guess it is around 6 bar. Small town in Germany.
We also have mandatory check valves since a couple of years to prevent water from entering the supply from the buildings in case the pressure drops.