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.
all investments or business related works are risky. Ut is not 100% safe since this business transacs through the use of technology. And also, the price is not stable sometimes it goes down and sometimes it goes up. You can't determine when you can earn your profit. But it's your choice. You just have to be strong enough and smart to handle this kind of situation