At present situation government actually not so much concern about such kind of currency for that reason people are not so much interested for using this currency. it is now use as a electronic currency though computerized system.
in terms of purchase and sales bit coin holder's are safe but the lack of proper monitoring system by implementing different protocols client are demotivated for using this currency on investment projects.Every country's government should established a policy for securing those client who are holder of bitcoin like an cash or deposit account holders and this types of policy help to motivated bitcoin holders for investing different sector for establishing new entrepreneur in order to development of economical condition.
Are you out of your mind, that is never going to happen, bitcoin is not well seen by governments around the world what makes you think they want to incentivize investments on bitcoin by offering a protection in case something goes wrong, your idea is similar to the insurance that governments offer to savings accounts but bitcoin is not for that bitcoin is an investment and if you lose then you lose simple as that.