This is not the first or last time this question has been asked on the forum. Everyone who learns about Bitcoin asks this question, but not everyone who has learned the answer to it has invested in BTC. To invest in bitcoin, you will need to study the DCA strategy, which, as time shows, is the best.
I think it is a question from people who are confused and lack understanding of what Bitcoin is all about. If one doesn't understand Bitcoin very well, especially the volatility of Bitcoin, and understands Bitcoin as being reliable and safe, trying to understand the DCA method of investing won't be of any use because a proper understanding is the first step to approaching Bitcoin, and the next step is to think of a strategy for how to invest in Bitcoin. Understanding Bitcoin and its volatility has been the challenge for beginners, but once it is better understood, how to invest is not even a problem.
This is very true. If you ask most newbies why they're actually investing in bitcoin, I bet you'd get any meaningful answers from most of them. A lot of newbies decided to join the bandwagon simply because they're either out of investment options or they've witnessed or heard of the amazing wonders of Bitcoin in the precious bull runs, and then they automatically decided to join so they can also benefit from the next. So many investors are here without the actual knowledge of what Bitcoin really is or its concepts, the only thing they know is that some people made some cool ass profits and that attracted them, and choosing the right strategy might be pretty challenging for such investors, because choosing the right strategy involves a lot of things like, understanding your current financial situation, risk tolerance level, etc and not all investors take note of these.