I've been using BTC for a while. I've been using it at exchanges, to trade altcoins and to order goods over the Internet, but I've never exchanged BTC with someone in front of me. At a store or between friends, or family. This despite having had long conversations about BTC with various kinds of people, and attending a few meetups.
Who has exchanged BTC F2F?
Even though my country prohibits bitcoin from being used as a transaction tool, I often do it every day until now, especially to buy goods for daily needs (incidentally, the shop near my home has a BTC wallet) and borrow or lend it, to friends who I know.
Yes in most of the countries they have prohibited their people from using bitcoin or its transaction, but still people there finding some ways to use it for shopping and for other purposes. In my country we also have the same situation, and that is the reason that I now mostly do transaction from face to face.