First of all, it's "green" marketplace, and there is no regulation right now. It is liquid very much and it is difficult to handle with it.
And of course, governments is afraid of anonymity, that is why, they are doing as they can to remove that anonymity. Bank system is very useful for government, but not for consumers, that is why, it will take some time to get used to blockchain, in general, and set up it for government requirements.