Because nobody now when market will start in up position.But according to my opinion this time is not of Selling just wait and watch the market and enjoy this time with your family because in few months market will start up trend.So this time no need to sell.
But if you want to invest more money in Crypto market this is the right time.
yeah, nobody knows when the next bull-run, but personally i think that this deep wave may be the last in it's season and a'm not selling anything now and plan to buy BTC and some alts a bit later. We now need to see what will happen with a 6k level, if it crashes then the next target may even be 3k but not for a long time, and with a really bullish mood after that. That is my opinion.