Bitcoin is the freedom to convert assets into a fiat currency which is not issued by any government but far from not being regulated by any government. In fact, making bitcoin transactions may subject you to additional governmental scrutiny precisely because it is endorsed by certain shady people on the Internet.
It is not immune to massive value fluctuations.
https://www.google.com/finance?q=CURRENCY:BTC
It is not immune to physical theft.
It is not immune to taxation.
It is not immune to accidental loss.
It is however outside the world of government fiat currencies so I believe there are no government-insured banks that allow you to deposit it.