This bitcoin price has the potential that can be expensive and you have spent the bitcoin you have so that you don't have bitcoin anymore if you sell all the bitcoin you have at a price when it's cheap it looks like it will make you regret the deep regret
I think it depends upon the situation of the invested that he will be visited whether he wants to sell all their investment then he can definitely send all things and use them because investment is for our emergency our future is so selling or buying investing depends upon the each and every people who had interested in this field