Wouldn't that make things more expensive so that only the rich can continue to be better off?
Its price? 300 euros.
So apparently not something that is only for people that can only afford yachtes.
In ideal world it would be non-profit partnering with hardware vendors to produce <educational linux distro> and certify various devices for it. Then non-profit could continue to develop the systems and vendors would have incentive (schools will buy your hardware) to help.
Where parents get to decide what systems their kids use, and mostly with OSes where planned obsolence isn't part of the deal.