Capitalism is when maintenance is Somebody Else’s Problem.
People owning a lot more stuff than renting makes maintenance much more inefficient. We appreciate economies of manufacturing scale but not efficiencies of maintenance scale.
Outlier DIY hackers may do better than the industrial mean of service standards for say car repairs, but the average human never will. Learning data gets spread too thin. A repair org gets both concentration of learning data and institutional capacity for inductive generalization