Now, indeed, many countries are not ready to accept Bitcoin, but gradually the countries with developed economies are making changes to their legislation in order to tax profits from income from crypto currencies...
Bingo!
You've hit it right on as far as I see it as well.
However, there is a dichotomy to this as first it may have seemed simpler for govt's to outlaw and declare illegal the use of Bitcoin rather than having to regulate it. Now they have people learning as much about the technology as possible (the deep web was a US govt project to begin with) to attempt any future regulations and still be able to track money laundering and the like.
But they really want us to pay taxes on the gains... that's pretty simple, and if there is no way for them to go after someone for large amounts of tax evasion that would be difficult. There are regulations newly in place that put the responsibility of tracking who is putting how much fiat into, and taking out of, the market onto the exchanges themselves. Whether or not the exchanges will be automatically required to do reporting to some governmental agencies remains to be seen.
I believe there will be continued attempts in regulation of one kind or another, for consumer protectionism if nothing else, continued crack downs on fraudulently illegal money scams concealed as ICOs or other airdrop mechanisms where one is asked to send 1 BTC and receive 5 BTC in return (those are all scams and sometimes the cybercriminals are caught).