With news like this:
www.coindesk.com/germanys-government-media-bolstering-bitcoin-popularity/I'm tempted to move to Germany and start The MΣCCA in Berlin.. a futuristic cyberpunk bar where you pay with MΣC.

I could see a initial phase where you could pay with fiat or MΣC, but moving towards only MΣC and creating a culture of crypto.
Paper wallets would be awesome for something like that though. And of course an iOS/Android app.