Fuuuuck the best place I've ever had ramen ran exactly like that, hope they're able to update smoothly
They remembered my wife and I 1.5 years after our previous visit, the lady said "oh my, it's the tall American, welcome back!", so they earned my loyalty
Very interesting because the bills will be different sizes similar to other countries currencies. Before they were all fairly fat sized bills.
Honestly it can be worked around, I know places have stickers that read "does not accept new 500 yen". They can have change machines 両替機 or a counter person that can give out old 1000 yen bills from 5000 yen etc or a token.
It's also not that expensive to replace the cash receivers on vending machines. There's a reason they're on panels. You can basically just pop out individual pieces and swap them
I was about to suggest this. I'm not an expert but I've seen the inside part of different type of money accepting machines and they seem relatively easy to adapt, at least from a layman's point of view.
I know commercial washing machines are relatively easy to fix yourself as an owner since that's sorta how they're sold, I don't suspect this part of the vending machine is that much harder.
