From all stand point as Bitcoin keeps gaining more popularity and adoptions it won't be inaccurate to say the government are endlessly finding a way to do a complete regulation on Crypto currency specifically Bitcoin, Despite most times the word crypto currency might be used to address all crypto related digital asset but the main target remains Bitcoin due to it's decentralised and distributed network as well as been the major crypto asset.
Bitcoin represents all cryptocurrencies, it is the "King" and taming the king is like controlling all its domain ( cryptocurrency industry). So regulators always aim for the dominant one to give a good example.
Why it is obvious getting full control of Bitcoin functionality and distribution seems impossible due the fact it has no central point of control one might expect stricter rules governing the use of custodian and non-custodian wallet, declaration of all cold wallet addresses, Setting up committee to monitor transactions on the blockchain public ledger, introduction of wallet trackers and ownership on different OS and maybe lots of wild experimentation to make regulation a possibility.
It is impossible because of the system and traditions people have where trust is given to a third-party company recognized by the government thinking that it is best to let the licensed entity by the government manage their financial security. People are too reluctant to manage their own finance and bear the sole responsibility of securing it.
Believe you me no matter how advanced bitcoin decentralisation might look or sound the government will never risk giving their citizens full control of their assets. The always want to be in charge and has long has they have this limitation of full custody stricter laws regarding Bitcoin usage might spring up. Technology is advancing
The government always wanted to show its citizen its power and control reason why any government will do its best to control all things and the cryptocurrency industry is no exemption. As long as people are using centralized industry, no matter how decentralized bitcoin is, there is always this choke point where the government regulates anything that passes it. Besides regulation is inevitable if the industry needs government adoption.