Earlier quoted context omitted.
Certainly in the UK (special case?), that's not the case . We certainly had Apple ][s at school and 6th form in the UK as the main machines - later replaced by BBC model Bs and back then there were summer camps doing computing for enthusiastic youngsters. Apple was again the computer of choice in the early days, to be replaced later by the ZX Spectrum.
Not sure I agree. Just my anecdotal data of course, but I don't remember seeing an Apple II in UK schools in the 80s, but definitely BBC Micro/Master and a few Archimedes later. This was in 2-3 North West state schools, so there might have been regional differences. Edit - oh yes, and about the ZX Spectrum... I can't imagine anyone willingly changing from something else to that rubber keyboard! Yuck.
The BBC Micro didn't really get into mass production until 1982.