Sure, if it's anonymous cryptocoins.

But I don't want the government able to monitor every $2 purchase I make.

Please state what all the positive ramifications you are referring to are. All I see is essentially some extra convenience in exchange for a probable privacy nightmare.

If they cashless society used Monero, or a fungible version of Bitcoin, sure. Even then though, it still excludes people without digital means - which is immoral.