Holding or trading is a choice, of course not a problem for everyone. Some people take advantage of market volatility to build their portfolio by trading, while others take advantage of it by buying more during corrections. Both of these options certainly have advantages and disadvantages, and should be adjusted to your plan so far. It is not mandatory for all bitcoin users to hold on to their bitcoin long term, it is simply an option for those who are willing to ignore market volatility even if at one time they make a decent percentage of profits.