Lest assume this senerio that, Mr A uses DCA uses DCA to accumulate bitcoin as his only strategy and he has an income of 2500$ and decides to allocate 10% to buying bitcoin weekly, so he buys at the first week at a price of 45,000$ and second week at 50,000, third week at 55,000$ and finally at 50,00$, he ends up buying at an average price of 50,000$ and accumulates a total of 0.05 bitcoin for his first month for an uptrend market.
Let say the same allocation with an down trend market of 49,000$, 45,000$, 40,000$ and 39,000$ price at each buying interval, he ends up accumulating a total 0.0578 bitcoin at an average price of 43,250.
i doubt that buying using DCA method is an automated system that auto buys the Bitcoin on a fixed week, month or year regardless of the rise in the price of bitcoin. Even if I'm using the DCA method to buying my bitcoin and after the first purchase I notice an increase and then another increase that Is way higher that the first price I bought my first Bitcoin, from a personal point of view, I would rather sell my holdings at the peak of the price rather than buying at that price. Their are range of price that if you buy at such price, you are very certain to have a loss or to hold your bitcoin for a very long time if you want to gain anything you of your investment. So using the DCA method doesn't mean that you should close your eyes to the reality that their are certain price that bitcoin will climb to that you should be considering more of selling your holdings rather than buying or accumulating more bitcoin regardless of whether that was the time you set out for the purchase of your bitcoin.
I don't really fancy this your selling of your Bitcoin idea at the peak, because if you are throughly a long term investor, you will definitely know that $50000 or $55,000 is way below the actual potential of Bitcoin, and secondly, as an investors that have decided to buy Bitcoin through the DCA method, you won't be actually bothered by the current price or market sentiment because you are only thinking long term, so what should be your primary concern is what would be a barrier to you not holding firmly even in the face of challenges, that's why you need to think out of the box by putting down measure that would make you hold firmly, like having an emergency fund and another source of income, but this your selling off your Bitcoin at the peak is a complete no to me, because I only thing long term as a Bitcoin holder