You are absolutely right, you just explained the advantages of using DCA some people seems to misunderstand, and from your explanation newbie can learn and understand that DCA is a gradual process and easiest way to accumulate bitcoin without waiting for a large amount to start or putting too much pressure on their finances. One thing I also like about DCA is that, it also help investors to focus more on long term instead of delaying their buying. as long as you are taken care of your basic needs and you have your discretionary income you can build your bitcoin position gradually.
You are right but like I always say, our progress in Bitcoin investment using the DCA method is the function of who we are. Have you ever think or imagine while some still panic, sell and sometimes don't hold for long or don't continue their Bitcoin investment? That is who they are . The DCA is just a strategy but making it work perfectly well as it is designed to... Totally depends on individual, how they think, react, prepare and approach every single thing to make sure they keep sailing.
Buying bitcoin through DCA is just a strategy and not a guarantee that it will immediately succeed. Basically the success of a strategy still depends on your mindset, emotional control, discipline and readiness to face price volatility.
A lot of investors start with good intentions but when the market drops sharply, they panic and sell because they focus on short term losses instead of long term goals. That's not the strategy's fault but because they don't have a mature mindset towards bitcoin.
So, for your DCA to really work well you need to prepare yourself mentally and set clear long term goals and most importantly, understand that the fluctuations that happen with Bitcoin are normal.
The key in applying a DCA strategy is that as long as your basic needs are met and you have a stable income, this strategy will work well because when investing in Bitcoin what matters most is not how much you invest but how strong you are at holding on.