You’re going to be blocking a lot of people. 75% of Americans who have heard of cryptocurrency are not confident in its safety and reliability. Those are majorly important things for any currency.
Cryptocurrency is a scam because no one backs it. There’s no guarantee major exchanges won’t fold overnight. It’s just “trust me bro” with your life savings.
All major currencies have a government backing them. That means they guarantee that you can (must) pay your taxes and any government fees in the local currency.
Which do you think will last longer? The US Government or a “trust me bro” crypto website? It’s that simple.