It could attract some casual users. Many people know Bitcoin a bit, but never learned enough to use it. A Bitcoin shop with kind Staff could help.
But will it attract enough people who are willing to use the Bitcoin shop too? Won't using an online shop be the more comfortable solution?
You are right, It's a good idea to open bitcoin shops in big cities, It will attract many peoples, People who know bitcoin and people who don't know it. In these two cases it's too great for bitcoin. I am with this idea. and one day i want to buy some staff using my bitcoin in the real world.
Opening a bitcoin shops in big cities is very good idea, but the main problem will be that whether the bitcoin is legal in that country where you are going to start the idea because until you dont have clear view on taxation and legalization of bitcoin you cannot start any shop without problem.