That's easy to debunk with the Bitcoin Rich List:
Only 20,428,711 Bitcoin addresses are richter than 1 USD. With about 7.5 billion people on the planet, at most 0.27% of the population can own Bitcoin.
It's a safe assumption many people own more than 1 Bitcoin address, so I estimate the real number to be far less than 0.1% of the population.
Given this low number, it's amazing that almost everybody knows about Bitcoin! That's one hell of a potential userbase!

Now, to answer your question: I know several people IRL who own Bitcoin, some of them slightly influenced by me, some did it on their own.