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Where I live tips are optional and given as a thanks for good service, and often calculated by rounding up the bill to a whole number instead of calculating a percentage.
Waiters still make a liveable wage without them here, though it can still happen that on a good night they get more from tips than from their wage.
I have a family member who works as a waiter, and there they collect the tips together and share them equally amongst the staff working in the restaurant at the end of the shift. So in this restaurant, the cooks do benefit from it as well. Though there is no legal framework for this so not even restaurant does this.
Most electric cars are pretty much computers on wheels, and voltages, currents and temperature are constantly monitored. It totally should be possible to log battery health and diagnostic information and generate a battery health report for when the vehicle is sold. But standards would need to be put in place for that to force manufacturers to implement it and to make sure the results are actually meaningful.
Unfortunately Tesla’s specifically really don’t feel like they’re designed to last when looking at their materials choices and build quality (either that or my manager just bought a particularly bad sample, I have to admit it’s the only Tesla I ever been inside of) so I don’t think having a good reseller experience or longevity is really a part of their business model.