I think Bitcoins saving is quite risky, because compared to other forms of investment such as gold or dollars, cryptocurrency is more risky because the possibility being hacked is so high, we could be stolen bitcoin or the ability the network system attacked, you lost all bitcoin in the second. In addition,fluctuations in bitcoin price are highly impacted by the market so investment in bitcoin is unsafe solution. 
lol, this is such a risky for those newbie like you, and dont know how bitcoin really works. "possibility being hacked is so high" stock exchange already hacked before while bitcoin is not, so how could you say that bitcoin could possibly get hack? bitcoin reached its price because of some bitcoin believers and not a negative minded like you. investing in bitcoin is very safe and reliable.