Crypto is still very new compare to traditional payments system, so it is not surprising to see that many people from different parts of the world still unaware of it's existence, but compare to 5 years back, the awareness is gradually increasing, Crypto and btc is evolving.
I can't agree with you. In last year I've read an article about American crypto user. In that article I've read that about 36.5 million Americans own crypto.
Link:
https://cointelegraph.com/news/number-of-americans-owning-crypto-doubled-in-2019-finder/ampThere are a lot of crypto user in America. it's really surprising to me that an American freelancer doesn't know about BTC. many freelancers get payment in BTC. and as a freelancer I think, all freelancers know about all major online currency, if they use it or don't.