I often do that from time to time when I want to buy something. There were some events that I go to a coffee shop or restaurant to order some food, and I see that they don't have QR codes displaying.
That's where I started opening up to them about digital payments and Bitcoin. Although not all of them are interested, but at least I let them aware about the positive use cases of Bitcoin and other cryptocurrencies to restaurants and coffee shops.
It's all about massive adoption by giving them awareness.
As you can see, not everyone is interested in the value of bitcoin, even believing that it is a secure payment method, although some people may be interested but it is just a supplement to their knowledge and such superficial reactions, I think we should pay directly with the usual payment methods, it will not waste time from both sides. Do not worry when we do not have the experience of paying with bitcoin, with the pace of interest and development, the future is still very welcoming to Bitcoin to become part of society and the world.