Price really doesn't matter if you are getting involved in the accumulation to achieve a particular amount of Bitcoiner's hard-lined Bit coiner but it does when it comes to more efficient accumulation.
You still have to spend time learning about what is "more efficient" accumulation, and you are not going to know as a newbie and you are going to have to spend time studying.. and sometimes people don't have time, so it is better for them to just employ a more strict DCA approach.
Basically, there is a lot to learn by those (beginners) when they want to start or enter the world of investment, especially in bitcoin, not always focused on "big profits". Not everyone can accumulate very precisely, especially for beginners, and as a result they are very likely to struggle to get bigger returns in the future as most of us always want. But this is not the end of the world, totally agree with you, I think if they have a clear and strong goal with a good plan for a big profit then they need to take some time to study it in depth and detail, it is never too late for change and progress.
True, until now DCA will always be the better solution, especially for beginners who certainly don't know many things that are there and that they have to prepare. Maybe they haven't experienced some of the surprising bitcoin (negative) things, you might be surprised. And to minimize your losses and also obviously with your mentality then there you have to approach in depth with DCA, use this method so that you as a beginner still feel safe and comfortable, you just need to always consistently set aside a little of your remaining money every week / month.