There is a way the money will grow and we begin to imagine what we could achieve with it, this is where the temptation of selling come from.
There is nothing greater than seeing bitcoin as a life time investment, and legacy of which wealth is passed down to our children, if you have this initiative, you will hardly want to sell all your bitcoin to buy some kind of achievement that you think is better than your bitcoin achievement, which I don't think that there will be any achievement which will be able to generate good profit compare to the profit that your bitcoin portfolio will generate for you over time.
Furthermore, I have seen a case of someone using the funds for DCA in buying something else. His emergency fund got exhausted and he needed more money for his needs. This is one of those things that can come up even when you think you have got everything planned out.
I will say he didn't have proper plan and that is why he ended up using his DCA money and also exhausted his emergency funds.