Some people feels DCA is met for those who are not rich but that's not true, just like lump sum strategy are best for those who got an inheritance from there father, mother, or anyone at all or someone who had the opportunity of having a huge amount of money, DCA are met for those who receives there money week, monthly or yearly is for those who chose to accumulate with time.
There is no doubt that a person can participate in investments in any way, the DCA method is the same for both small investors and large investors. Any investor can choose the DCA approach, but the approach is best for long term investment. How much to invest will depend on the investor's income, with those with higher incomes buying more bitcoins and those with lower incomes being able to DCA a small amount of bitcoins weekly or monthly. There is no fixed rule in this, if you can invest, you are open to use strategies that will last your investment for a long time and become a successful investor.
So the DCA strategy is for those who receives small salary and those who receives big salary, one can decide to invest $5k weekly or $100 monthly it all depends on your Discretionary income.
There are several strategy for those who wants to invest in Bitcoin and one can only choose the one that is okay for him or her.
I would generally refer to a typical investor based on myself, I am a low income person trying to meet the basic needs of my family from what I earn from a typical job. And the amount of money I used to overspend at times in the past but have now eliminated. With that extra money I buy bitcoins in small amounts every week following the DCA method. Investing little by little makes my portfolio feel much bigger to me, because when I overspend in the past I didn't get any account.
But now by investing bitcoins in DCA method I am able to consolidate the funds and convert it into bitcoins, from here my future will go far and I will be self-sufficient. I invest between 5 and 9 dollars a week. My goal is that I try to keep my investment alive for several years.