Rereading I see more what you mean. Simple example, USD dislikes crypto. It takes some doing to buy crypto, you can't just click a button on bank, nor buy it on E*Trade. You have to make a new account on a crypto exchange, yada yada, and then your bank is likely to interfere when they detect "suspicious activity" or the like. So that friction is enough for a lot of people who might dabble to steer clear. At least that was the case prior to ETFs. And back further you had to go to send money to shady Japanese exchange to buy BTC on mtgox (huge friction, and partly why I am not swimming in bitcoins today, as I saw that back in the day and was like "ooohh, that looks shady, no thank you").
The clip I posted minutes ago should interest you. Highlights how currencies and property rights are all smooth and background oiled machines...until they're not.