I would not like to say specifically any new or old investors should follow DCA. Anyone can apply the technique by recognizing these beneficial aspects. However, those who are not financially astute may consider investing in Bitcoin as an opportunity to grow their portfolio. It doesn't matter how much I invest. But the key is that I am investing small amounts regularly which will help to grow my portfolio. It also plays a role in reducing risk as it creates investment opportunities. It is not possible for an ordinary or small investor to invest large amounts at once. If those investors are willing to invest then DCA may further encourage them to invest for the long term and definitely It will be the best way to invest systematically.
With limited financial capabilities, it is difficult for small investors to invest a large amount in one purchase, hence DCA comes as a solution for investors to increase the size of their portfolio slowly but steadily. I think it's not only small investors who do this, but big investors also do the same thing, but maybe the difference is that the amount they put in is bigger than what a small investor puts in.
This is the easiest way and the best option, especially for me personally this is a very helpful way. Especially I do this for a very long term, slowly but surely with this strategy I increase the amount of my portfolio every week.