4. Who really knows about Bitcoin? If it wasn't for me 90% of my friends would have never heard of it. My mom wouldn't have, my girlfriend... most people still do not know about Bitcoin in 2017 and the majority that DO know about it don't even understand how it works.
Bitcoin is still a relatively new concept and tech behind it is not widely known. This is only natural, give it time. How many people know about the Internet in the mid 90.?
Internet was used by crazy people who used modems and paid for every minute of connection, and no one knew exactly how it works either.
Look what happened to the Internet now - every single person is using it every day.