You must live in a bubble where people from from Essex or cockney London or the South West don't exist
no I live in a huge northern city, but with a different northern accent than the locals have. I have a different accent to my children. I have lived in several places but never London nor the south. My accent doesn't stand out as much here than other places where I have lived and been judged, people assume I am poor, Coronation Street was the reference point for most people I was at uni with in the 90s. They assume the north is all cobbled streets, terraced houses, Vera Duckworth.
I love the cockney accent, I could listen to Danny Dyer all day. Couldn't tell you what a south west accent even is.
As for PP mentioning not going far and Nottingham being a reference point, have you seen how long it takes to drive to some places? My university was 5 hours away from my parents meaning they drove a 10 hour round trip. Yes trains are great, cost a fortune though and I don't know how many students move into accommodation without getting a lift from a parent. It is a lot of stuff to move. So distance is a factor. Ds didn't consider any London based unis due to cost and he wanted to be no more than 3 hours by car away from home.
Durham comes up a lot, if you look at the article I linked above by a current Durham student it says
*University Vice-Chancellor Professor Stuart Corbridge warned students: “If you see misbehaviour, if you see examples of sexism or misogyny or racism or classism, challenge it."
So don't report it to us, you stand up to them yourselves. Hardly proactive by the university.