Does depend on chips being available and some knowledge on how to diagnose the damages (e.g.: board schematics).
Here's an example of new age Macbook pro's dying from little water ingress (design oversight). And a combination of knowledge and a simple chip can fix your nearly write off Macbook. https://www.youtube.com/watch?v=jahtu1_idVU
Apple loves to say that their products are so expensive and complicated that manual repairs just aren't worth doing. But observably, in the real world, even with all of the crap Apple puts in front of repair shops to slow them down, that isn't true. Third-party repairpeople still manage to regularly beat Apple's prices.
For most manufactures the incentives now is to minimize repairability. Increasing the repair cost.
Having some regulation in place to limit repairability prevention may tip the scale a bit towards repairing.