I’ve tinkered with motorbikes a bit, and although they were old models and seemed mechanically straightforward, there are pitfalls, and not knowing what you do can kill you. I think most people who do their own repairs can grasp that.
For instance, I caused an “innocent” (or, to put it another way, “idiotic”) electrical fault once, that caused arcing on my steel mesh enclosed silicone front wheel brake line… luckily I noticed what was going on when brake pressure was going away.
That said, what if you do not trust the companies you buy from? Did you trust Volkswagen on their emission sheets? Did you trust Toyota on their brake pedal things? People need to be enabled to at least check a machine in which they literally put their and their families lives. This is not a bad thing.
People have burned their houses down and got deadly shocks from doing home repair on their house electrical wiring. The solution to that is not to outlaw screwdrivers.
