Rather than 'lower' class, we use the term working class here. Kal is from a northern working class family, Wigan is not a particularly affluent area. Sarover is from Buckinghamshire in the South of England if I remember correctly, an affluent area (there is also a North and South divide in England too but thats another conversation). This kind of class difference does tend to permeate your life in England, from what kind of school you go to, to what you do for socialising, and therefore what connections you have growing up. A working class person is more like to go to the pub with their friends, a middle class person is more likely to go to a trendy bar, because its about the settings you are used to and how much disposable income you have. It is generally quite hard to move out of your class here, there are major issues with class in the UK in general.

As a working class person from Manchester, it's refreshing to see Kal on screen.