In my country, a very small number of people who are not professionals in the world economy, invest in stocks, other securities. Although the process has long been settled, legislation is available. And what about the bitcoin? In addition to economic knowledge, you still need to know computer technology, have enough free time to study at least the basics. Otherwise, this is not an investment, but a casino - lucky, unlucky.
I think it means other people are not interested in bitcoin because for those who work in the work full time they are a good source to get the money to live. but I think if we share knowledge and experience US in cryptocurrency may it all interested and try to find their luck in the world crypto. I think it because of lack of knowledge and information they might not know. Yes for US there is a great potential to produce bitcoin while others they will live in a way classic.