Absolutely. I think the only thing they can do is declare that BTC is banned. Providing Bitcoin users are reasonably careful, a government can't neither trace nor prevent BTC transactions. What they can do, however, is they can block the websites of certain exchanges. That's it.

$3000 isn't that bad, actually. It isn't $0.01, is it? But frankly I don't know who can guarantee the price level either high or low, whatever. In a market like that we could expect anything even beyond our expectations (the moon last year was totally unexpected, wasn't it?)

Right. We can't discuss Bitcoin separately from blockchain which is gaining popularity every minute, so yes, considering the developments in the blockchain area, I'm sure Bitcoin is and will be just fine.

Big companies, serious businesses, I mean, have developed a number of rules or policies to safeguard the confidential information. For example, always keep your computer password protected with automatic rules applied by the company computer system as soon as you log in; passwords must meet the minimum requirements; never leave your laptop unattended either in the office, or in your car, let alone in public places. So after working more than ten years in such environment you also become 'paranoid' because it has grown on you and you don't find it annoying, anyway.
I keep my coins in cold storage with keys kept in various secure places in locations different from the cold wallet's location.

Well, I wouldn't say it "requires" approval. You can use it whenever and however you want, but to turn it into fiat and use it further like, say, depositing it to the bank you will have to explain where the money comes from because it might imply that you are engaged in terrorism and other illegal stuff. So, unless it is officially approved, its use is very limited and if you want to use all the benefits it offers you are interested in its approval.

Couldn't agree with you more!
Some people don't feel like using even credit cards What about the developing nations where there's almost no Internet access? This transition will take quite a while, but sooner or later, we'll get used to it. It's inevitable.