I asked my grandma if she had ever tried 69. She said, "No, but I have done 53 -- that's all the sailors I could screw in one night."

People have been conditioned for thousands of year to hold currency in their hands and the modern phenomenon of bitcoin paper wallets is quite different. The current paper currency system was originally just a receipt for funds held in reserve at a bank, not the actual monetary value itself. Now that the centralized banking system and nation-states have exploited this system for their gain of unlimited credit, people are moving to Bitcoin for sound money value.

http://www.newsbtc.com/2015/12/15/bitcoin-paper-wallets-get-a-swiss-facelift-for-holidays/