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.
For us to fall into the temptation of trying to withdraw our investment, we have to have other source of earnings because it normal for a person to be in need, but you decide to invest in bitcoin you should have it in mind that it is unusual for you as a person to tamper the funds for a particular period of time and this will be for your own good, don't be premature decision take when it come to Bitcoin investment.
When you are out for bitcoin investment there things to avoid, like making fast decision in terms withdrawing funds, no doubt situation may call for such but they only way to overcome this inevitable situation is to make sure that your income can sustain and caution whatever may arise so that nothing will warrant you to think about withdrawing your asset to solve problems.
As the case may be, even though the money grows to a tempting stage, if you must withdraw for anything, let it be for another lucrative investment not for lavishing purposes.