You totally misunderstand the "crypto" in "cryptocurrency". Have you actually looked at any part of the Bitcoin blockchain ledger? I have, and you can too - it's totally visible to everyone. (That's part of how it works..)
Wanna know what I did NOT see, anywhere in the ledger? Names. There are no names. Nobody knows WHO holds these credits. Government can't track you there. The way it works is that the credits are held by a number. That number is like a "lock". It's owner holds another number, which is like a private, secret key. To claim/spend your credits, your key is used to create a third number, which proves that you hold the secret key which opens your lock. Yes, anyone could generate random keys and try them out on your lock to take your credits, but the number of keys they would have to try is something like... if every grain of sand on Earth, was itself a whole Earth, and every grain of sand on all those Earths had a unique key number printed on it, then your number would be on one of those grains of sand. The chance of anyone trying key numbers at random and hitting on yours, to steal your money, is vanishingly small.
If you keep your key secure, nobody will ever take your credits. The only way Bitcoin is ever stolen, is when people don't hold their own keys, but instead sign up with trading sites which do the key/transaction management for them, but fail to properly secure their servers, allowing hackers to get in and access their lists of user's keys.
Bottom line - used properly, crypto is infinitely more secure than cash, and totally outside gummint control. It is the "industrial revolution" of money. Your cash is an Amish buggy, Bitcoin is a jet engine.
Keep riding your clippety clop buggy if you want.. but the world economy will be zooming overhead, out of reach.