I know 3 women who are in their 30's, with secure tendencies on 4 bedroom houses, the equivalent of 55k a year in earned income each through benefits (40k in hand to cover all living costs including rent). None of them has any qualifications or work experience. They have achieved this income and secure housing by producing 6 children each as single parents
What happens when the DCs leave home, surely the money will dry up.
Perhaps Asian families all have someone at home to supervise homework etc. Not necessarily DM, could be DGP. Many white families will have both DPs working.
I do think that if you've travelled to a new country you are going to make the best of it. The nonsense, that we were constantly told by gov,about immigrants admiring our British values was probably much more them admiring free education.
There is so much on tv - the voice etc where ordinary folks shoot to fame, likewise some young bloggers - so you can be famous and rich without qualifications.
I live in the US sometimes and if a member of the public is interviewed on tv they can make a good explanation and speak clearly (perhaps not parts of the backwoods). If you stop many Brits they will have an extreme local accent and probably lack the confidence to put themselves over. Also it is cool to babble/mumble in local dialect. There use to be a language for work/school and another for pals, not now.
Most of my teacher friends are retiring now but when they were at school they all hated maths, did the bare minimum. I'm sure they were good teachers but it could be that still there is a bias with the many female teachers in primary not enthused about maths. There is obviously a dearth of female stem students (constantly being promoted) so presumably that stretches to teachers too.