I am thinking about this also. How will Bitcoin be of use when its price is too volatile. But I realized that when Bitcoin becomes our currency, I think its price will stable since there is no buying and selling of Bitcoin. The only thing that affects price is when someone buys or sells Bitcoin.
Some of you makes funny comment sometimes. Bro who told you that Bitcoin was going to be your currency? And by the way, you better know that Bitcoin is not going to stop being volatile, its a cryptocurrency, so what were you expecting before? It will continue to be volatile even when all are mined up. Bitcoin is not going to be any currency, its for making payments and can also be an investment, if you cant accept that, then I have nothing else to say.