It would not be so hard you just need to scan the QR code to pay with your mobile App i guess. Also yip it's hard to understand the language of a country where you are temporarily living .
Probably but I don't want to seem as a madman trying to pay someone via a currency that the cashier doesn't know how to accept, because possibly no one has taught them how to . And as I said, I don't want to take any chances if say the Bitcoin payment was cancelled months ago. Just saying
So first you gotta learn Dutch and then educate the cashier on how to send/receive bitcoin transactions and then expect to get a free Foot Long

sounds a better adventure than hiking.
A free burger Looks like a nice deal and it seems like Netherlands is supporting bitcoin considering more than 100 venues accepting it.