One person uses it, for a pre-determined amount of time dictated by security updates and software based gatekeeping, and then its time of usefulness has passed,

One person uses it, for a pre-determined amount of time dictated by security updates and software based gatekeeping, and then its time of usefulness has passed, and it can't be meaningfully put to any other use. In parallel, parts and service become scarce. If you're advocating that the average user, or differently abled users get comfortable with the tweezers and pentalobe screws in order to extend the lives of their devices, I'm afraid you've lost the plot.