Dearie me. Dr P has come right out with it, goose-stepping all over the place, while we Brits would pussyfoot around, quoting Basil.
It is obvious that the poor teutonic chap does not know about the excellent public/independent schools we have in the UK, hence the diatribe from the good doctor.
State schools are a mishmash. Some good, some bad, some just appalling. However, most privately funded education is excellent, with the exception, by and large, of the "progressives", and those of us who know about these things know exactly which schools those are.
This question cannot be dealt with as a general topic. PP should be specific. Are you referring to the UK system schools here and how your children will slot back into a private or state school in the UK? They are two completely different animals.
Your views on English schools are consistent with mine?

Perhaps I write too fast or should use words of a single syllable or perhaps a series of nasal grunts like those many charming English dialects?

And don't mention the War!