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.
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.
People who think this is wrong because investing in dollar cost averaging method is something anyone can do. Be it rich or low income people. How much you can invest will depend on your ability or income. If you can afford to invest more money then invest more and if you can afford to invest less bitcoin then invest less. That means you can buy it on weekly or monthly basis according to your income.
Monthly income from job or business is used to meet family needs. So if we withdraw some money from the amount of money we earn on monthly basis we can invest it in Bitcoin. But before investing with money earned from job or business, we have to make sure that we don't have to sell the money we will invest at the moment of need i.e. we don't have to sell until we reach our specific goal.