Ok yes - it is generally BU.
But what do you say when someone asks you why you don’t have a regional accent?
Where I grew up, there was a strong regional accent. Not everyone had it, but most did. Unfortunately it was drilled into people of a certain generation that speaking like that was not proper.
And so, despite my family having lived in the area for time immemorial, with my parents having gone to university in the 1950s/1960s, they had no strong regional accent. Perhaps a bit of a twinge but most people wouldn’t tell.
Recently I was chatting to a stranger in the pub who asked where I was from. I told him I was from the next town over. But he wouldn’t have it.
He kept asking me why I didn’t sound like everyone else. I told him that maybe it’s because I went away for uni. That wasn’t enough. He suggested maybe I moved here as a child. I told him no, I was from here. Then he kept asking why I or my family didn’t sound local if we were local. So the best I could come up with was “well I guess it’s because my parents were professionals”. Then queue all the lah di dah comments.