Yes as I posted above, DD has friends whose parents are very sniffy about us sending her private, but who could afford to do so much more than we can - £900k+ houses, £150k/yr household income, several luxury holidays a year, kids have tutors!
And as well we also know parents with high incomes or masses of assets (eg several houses they rent out), but who managed to pretend they were terribly religious to get their kids into nice CofE and Catholic schools.
We have none of those things and are the classic “no holidays/one ancient car/tiny house” parents. We’re getting to pay a massive wodge of extra tax though, which will ensure that I never vote Labour again, despite having been a Labour voter all my life. Labour should be pro education, not for taxing education.
If you want to tax wealth, just tax wealth, NOT education as a poor proxy for wealth - it only indirectly taxes wealth, but has the greater impact on children, bursary recipients, and on the employees of the private sector - who will be mostly ordinary teachers and maintenance staff and dinner ladies, not themselves remotely wealthy.
If you want to tax wealth, just tax income and assets, FFS. Huge amounts of unearned wealth is tied up in property and assets in the country, and disproportionately owned by the wealthy and the over-60s, especially buy to lets and “investment” properties. It’s that that needs taxing, not education!