If you think about it you already use crypto, how many times have you paid with credit or bank cards electronic iou. With the push for cashless society so government can cheat more and no need to print fed iou even more saving on what a dollar? It too like crypto only holds value because someone had faith in it has zero intrinsic value.
Only advantage in crypto is jo theft by inflation as no more coins can be made once algorithm is set and so far no one has found way to introduce fake algorithms the systems will except…. better than cash. Lots of fakes. Usd endless inflation by government crypto zero possible. Usd heavily controlled crypto catch me if you can. Usd move anything over 2 k and get a probe crypto you need to find someone to accept 2k worth (exchanges but once back into account see first problem. .
Crypto may go to zero usd heading to zero through inflation.
Usd accepted everywhere crypto not so much, new visa and Mastercard issued in Hong Kong you can pay in crypto.
I am not saying go full crypto as that would be stupid but you need to examine and compare system