DCA is always been a good strategy in any market condition as we never predict the exact bottom and exact top of the market. If we keep on waiting for the perfect top/bottom of the market, then most probably we will miss our entries and exit. So the best thing to do is to DCA both when you want to buy and also sell in the parts.

However let's take one scenario like you want to DCA in the bear market, but most people do not know where to take entries. Sometimes they take entries to close like one DCA entry for bitcoin at 30,000$, another one at 29,000$ and third one at 28,000$ and so on. If you do DCA like this, soon you will be left out of money, if bitcoin reaches 25,000$ or 20K levels. You need a plan for DCA entries too so that you should have money in hand, even if bitcoin reaches 18K or below.