I agree with you! Bitcoin has no market price stability like currency. The price of bitcoin varies from time to time: sometimes up and sometimes down. So many people who are not bold in investing in Bitcoin don't even dare to invest in Bitcoin. In fact, many countries do not accept BTC.
But that instability was to be expected, we are literally seeing the birth of a currency and how people begin to adapt to it, there are only a few million people that are using bitcoin and as that number of people increases or decreases then it makes sense the price of bitcoin to change depending on the circumstances, this instability is not going to last forever, as soon as bitcoin is adopted by a significant amount of population around the world then the volatility is going to go down and it is going to become more manageable and bitcoin will become a better currency.