I think its there now nuggett with low voltage faults etc etc
Signal loss etc many things have trouble lead back to bad earths and there can be so many different earth points an voltages in systems that are sensitive to this .
Its complex but simple sometimes where a fault may lay .
We are just so time poor when we want to do things perhaps ?
I don't see this as being that different when the first ice vehicle's come about you could push start or they come with a crank handle to start them maybe even didn't have a battery ?
Now you have a hybrid crank for your battery i guess why they are most popular take up in this transition etc etc
Just outside for a moment on the veranda an someone rides past on an electric scooter .
Plenty around im not sure if they will grow more popular or not sometimes you just don't notice change .It though would have an earth on it for sure .
