Some people must have done that. Selling some Bitcoin, or taking profits to switch to Altcoin. There is nothing wrong, everyone has a different approach to managing their investments. But there are also those who sell Altcoin to buy Bitcoin, I have done it. Because the Altcoin I had already given some profits, and I sold everything to get into Bitcoin. Taking profits is not a problem, they are using their own money with their own investment plan. When reaching a target, then do as desired. Whatever the ultimate goal of using that money, don’t forget to reinvest.