@lanodan tbh in France I use much less cash, and I just discovered that I could pay much things with my ICOCA in japan so I'm pretty stupid...

It's kind of an hybrid system in japan, there's a cashier but they just scan the articles for you and then you pay at a machine that accepts cash, but only up to 20 coins :gyate_yamaxanadu:
so everytime I put a handful of coins, top up with a 1000 yen note and the machine spits out another handful of coins.................