why is the DCA concept highly recommended to every bitcoin investor because that way you have full control over the money you make, for example every month you make $1k from the work or business you do and you invest $300 or $400 every month to buy bitcoin, so you still have around 65% of the money you earn left, you can use it for your daily needs and set aside a little for your emergency fund, however, this emergency fund is what you can use later for urgent expenses, so you don't sell Bitcoin that you invested so far.
Actually, it's just our different habits in allocating the amount of money we will use to apply this strategy, but I think it's worth discussing because it can be a consideration for beginners to choose which option to use.
If you prefer to choose to first allocate it to bitcoin investment which is 30-40% every month, I prefer to see how much I spend every month (including emergency funds) after that I can allocate it to buy bitcoin, yes even though the amount is not much different from 30-40%. The reason I do this is because I see my daily needs as what I need to fulfill first.
Again, it's just our different ways, but the goal is the same. There is no problem with that, because the most important thing is our consistency in doing this strategy.