2. It is wrong to take profit and abandon it on fiat currency, that’s going from an asset with a store of value to one with devaluing characteristics.
I don't think this is a mistake, because in everyday life fiat is used more than Bitcoin, and when taking profits to save in fiat form is a way to secure cash so that it can be saved for emergencies, because no matter what, we need cash and the important thing is not to sell all our Bitcoin, but only a part of it so that we don't miss the train when Bitcoin rises, I mean wise in selling and also holding Bitcoin is part of being a long term holder.