I encourage cash spending at a small business I operate. Average sale is around $150, 10% discount for using cash. About 25% of people pay cash.

It’s very thinly veiled tax avoidance, but zero people have complained or called us out in it.

I’ve driven 120k miles on my Tesla, and have a different observation on range and efficiency. Even with sub-optimal winter tires and roof rack rails, I can still attain rated efficiency. It does require appropriate temperatures and speeds though, more sensitive to that than ICE cars in my experience. 80k miles in a Chevy Bolt demonstrated about the same tendencies.