You are on point, but how about after a beginner has followed your suggestion for two years and then decides to sell at a very good price in order to buy the dip?. I think the beginner should be able to buy more this time around as their DCA must have accumulated a lot over those two years. What I mean is that this DCA approach is very good, especially for beginners, assuming it is done for two years. After the two years, the person can then sell at a very good price, combine all the saved up money with what they get from the sale, and then rebuy the dip. This strategy should work fine, but the only constraint might be the timing of when to sell high and when to buy the dip.
You should remember this, there is risk in any decision you make. Right now it is more risky to be out of Bitcoin than in it. If you sell all your Bitcoin holdings, just after two years thinking it would DIP from the high it had just made, so you get to buy again but It kept going up and made several new highs before it took a dip and it might not dip to what you expect to invest on it again. Holding onto your Bitcoin for the long term has its own set of rules and principles to follow. It's crucial to have some discretionary income set aside to take advantage of buying the dip without having to sell your existing holdings. Consistently sticking to a weekly DCA strategy while adjusting it based on your income changes. Selling all your Bitcoin holdings after two years and waiting for the perfect dip can indeed be risky. Timing the market perfectly is a tough game, as we have seen in the past when Bitcoin price surged unexpectedly, leaving some investors waiting on the sidelines. Missing out on buying opportunities at lower prices can happen if you're not careful. It's all about being proactive and not missing out on potential gains by trying to time the market. Holding onto your Bitcoin and staying invested for the long term is often a more reliable strategy than trying to predict short term price movements.