Well, the kind of long distance running that some people do for fun would definitely kill me

Pour rappel, chaque grand parent peut donner plus de 30 000€ à chacun de ses petits enfants sans que ça soit taxé, il y a déjà de quoi pas mal les gâter !

Sure, a tax dodger might end up going through the garbage to remove the transactions corresponding to receipts that were thrown away from their records, but that’s at least quite a bit of effort. I don’t know where you live, but in france the government doesn’t check the garbage to find the receipt for simple groceries

Customer can still get a receipt, it just won’t always be printed, you’ll have to ask. So this wont change anything related to tax evasion, it just means that you won’t have a garbage can full of newly printed receipt next to the exit door