Macbooks (Air and other) are already dead in the education here in NZ they are far too expensive to buy and maintain. Schools have replaced them with Chromebooks which they can buy several of for the price of one Macbook - and they integrate into the Google infrasrtucture which almost every school here use.
Gone are the days of young impressionable minds seeing the Apple logo day in and day out at school and associating that with computers/education/IT - now they see the Google logo and are very likely to use their products and services by default.
I have already seen this happen in 90-95% of the schools whose IT infrastructure I support and I’m hearing the same thing from It people throughout the country.
This will of course not worry Apple as they will still think they can get that market later but I suspect on 10 years time things will be markedly different once these school children become the young and up and coming of the future