This is not exactly accurate. Only short term and day traders watch pricing this way. Medium to long term traders don't do this. They may have price stop losses and price warning triggers but that is it. In my opinion crypto is really a long term investment. You need big cahoons to day trade Bitcoin. I certainly couldn't.
Well, you are quite right regarding that the bitcoin price is not stable and is not for people who are looking forward to short-term investments but at the same time, it is never wrong to check to bitcoin price like every five minutes if you nothing to do so. Why? Because it can grow anytime, any minutes, seconds or hours and besides it is more likely investing in stock market you have to check the value everytime you are free.