With a family divided between south and north and having spent part of my childhood in northern England, as far as people go I do not see any difference. On a human level the North/South divide is an illusion. Any anecdote about differences up north can be balanced by a similar anecdote about the south.
The northern side of the family are balletomanes, DGD is a good enough dancer to be selected for weekend courses with Northern Ballet at Leeds. Further south, we love opera, see it regularly, but rarely go to professional performances and going up to London to the Royal Opera House is a once a decade experience.
And while we are talking high culture, DS is a Morris Dancer. He belongs to a local group up north but when he comes down to Oxfordshire, the cradle of Morris dancing, he goes off to see all our local dancers as well.
Jack Berry should visit and talk to some of his constituents now and again, he might get quite a shock to discover how out of touch he is.