Someone who panic sell there bitcoin because of a dip is definitely making a mistake, because when there is a dip in the price of bitcoin it presents an opportunity for us to accumulate more with a different and more convenient price as well, but I most say it is more common with someone who is new into bitcoin, or probably doesn’t have a little basic knowledge to panic sell at this point in time
You are right ,most people that panic and sell their bitcoins are probably traders which maybe short term investors, when there is dip many investors view it as a chance to purchase Bitcoin at a lower price forgetting that it should be an avenue to accumulate more and hold rather than selling it,but they don’t know that Bitcoin value fluctuate rapidly,but they would be the once to regret later.
You may be right while sometimes this happens as a result of poor planning in terms of having a good cash flow to be able to build a good discretionary fund and emergency fund. However bitcoin investment is not something one will just wake up one day and start investing when you have not even make any plans not to talk of setting a goal, just imagine someone going with this approach what did you think will become of the person? is obvious that the person will end up selling his holdings along the line maybe if there's any alerm for emergency. So anyone who is interested to go into bitcoin investment is advised to make a proper planning before taking any action, so as to enable you get to your destination.