Polls have shown >20% of people have traded or used cryptocurrencies [1]. Clearly there are common people in the space.
[1] https://www.cnbc.com/2022/03/31/cryptocurrency-news-21percen...
[1] https://www.cnbc.com/2022/03/31/cryptocurrency-news-21percen...
The number of Americans having any money invested in the stock market in any form (i.e. including 401k, mutual funds etc) peaked at 60%. I'd be surprised to see people trading/investing in crypto to be > 3%, but who knows. Annoying that they just have these broad questions. "Have you, at any time in your life, ever eaten solid food or murdered a president?"