Hey @siggy47 nice post. I'm right there with you in wanting to use a business to proliferate bitcoins use just by encouraging it in a brick and mortar spot. My idea to do this is a bit boring but I think it would be effective.

A laundry mat! It's a nice tried and true business that should be able to run itself quickly. One washer and dryer in the place, the ones with the best lighting, will be rigged up to only accept lighting payments. The how and why will be posted and the price in fiat will be much cheaper than the other machines. Wifi and educational bitcoin material will be available in the sitting/waiting area. As people start to use the lightning-only machine, which would be inevitable but may take time, a second set of washer/dryer is converted to bitcoin only.

eventually you have a nice business, a nice hub for people to learn and use bitcoin, and a nice big step towards the bitcoin world we would all like to see!