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.