I'm sure you're a nice guy, but who TF cares?
Following your logic, they may not know what a sat is, but they MAY know the market value of one bitcoin if they're LiTeRaLly paying in bitcoin via Square.
Having a coffee be 6,000 bitcoins is just DUMB.
Either
A. Use sats
B. Use bitcoins
Don't use A but call it B 🤦🏻♂️