I’ve seen that chart, and others, but have yet to see one that does an age+economic profile. Are we talking about older rich people, older poor people, younger rich people and younger poor people? I’ve seen the chart that says educated people vastly went for Remain, and conversely, Leavers tend to be less educated. So did the less educated young people go for Remain, or Leave? Did they even vote?
I suspect that NEETS and similar youngsters of the underclass were abstainers or Leavers. For my money, it’s that young underclass that needs attention more than any other group. Their exclusion, their lack of options and opportunities is ignored at our peril.