"Unlimited I'm a bit confused- why can't working class people go to cottages in the highlands"
Obviously I'm not saying that working class people never do this. That would be absurd. But, yes, its a pattern of behaviour I would associate with the middle class. Not for financial reasons necessarily. Working class youngsters are less likely to move far from their families for example- so might be hosting Christmas or expecting to visit nearby relatives on boxing day.
"Working class people aren't like your neighbour. She sounds like someone in poverty. She may also be working class, but the 2 aren't connected"
Unfortunately where I live there is very widespread poverty and it absolutely is working class people who experience it. Its a very common working class experience in my area, at the moment. Obviously not saying all working class people are in poverty- that's clearly not the case. But to say that poverty isn't connected to class: really?! At all?!.
To be frank, a statement like that just shows the danger in seeing class a solely to do with tastes, culture and background.