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. 
This proves that you don't do your own research before posting it here. I will give all my bitcoin if you can hack one of my wallet address. All you read about hacking is not the fault of bitcoin network but the negligence of trading platform and even single people who didn't research how to secure his/her wallet.