Bitcoin is an independent currency. Here you can invest as per your wish and withdraw as per your need. Others take it as a goal. He leaves until the goal is met. It is only your freedom. It is as easy as it is risky. You should choose your own thinking and research style at all times. Then success will come. On the other hand, keeping money in the bank is safe, but you will see how the value of your money decreases through inflation. If you keep money in the bank, how many rules do you have to follow? Again, the possibility of bank failure remains. So I think keep some money by investing in Bitcoin. Will come in time.
I agree with you we all need to do our own research first before do any kind of investment, If some people like the safest option and don't like volatility then the bank will be go to place, but if people like double APR then bitcoin is the best option.
Although some of bank only give you not more than 4% per year, but today inflation is spiking is more than 5% at lot of country. So do the math guys heheh