To get back to the original question, if Norwegians are learning English with a British accent, which of the many British accents is it?
It's surprising how many there are.

I think accents are good, and they help make life interesting. However, I think we should all try to keep our English understandable to other English speakers. This may simply mean slowing down.

Recently I clicked on a video where a young Australian mother shared her child-rearing troubles in a class. I couldn't understand anything she said. To me it seemed as if she was trying to hide from the world in a cocoon of beaten-down, poverty-stricken speech. Her hair and clothes were nice, but her speech said, "You can ignore me."

I've heard Australians before, but her case was extreme.