You bring up some good points there, some of which i can and im sure most others can relate to, but you say this now that youre off your p's, i bet if you were still on them you wouldnt be as supportive of them...the inconvenience, the money involved, the time, the headaches in buying and selling cars, now trying to source stock parts makes all this a real pain in the arse.
As it always has and always will, it all comes down to driver attitudes and behaviour, its not really the cars.
As its been said before you can still do 180 and go sideways in an excel if you wanted.
P.S Got a feeling stock parts are going to become just as costly as aftermarket stuff, so hold onto your stocky parts!