Same! I tried to tip someone in Bitcoin the other week (I had a Groupon and  no cash on me) but he sadly didn't know what I was talking about. He said he heard of BTC, but didn't know anything about he. He did say he was going to look into it, and probably set up a wallet on his phone. Hopefully the loss of a tip (Well, I did end up charging extra so I could use my debit card to tip a bit) gave him incentive to learn about BTC.