DCA is for those who don't have much discretionary income available
Says who?
Who told you that DCA accumulating strategy is only being used by low income earners or a low coiner?
The DCA accumulating strategy can be used by anyone, it's not tied up to a certain set's of people, the earlier you understand that the better.
Perhaps if you were not so fast to correct an impression or at least have taken time to read with understanding, you would've observed the meaning in the second part of my sentence quoted below
DCA is for those who don't have much discretionary income available and also those who wants to invest periodically to smoothen the effect of volatility on their investments
There was a second condition there which includes those with much discretionary income available, but wish to smoothen the effect of Bitcoin volatility on their in investment.
DCA has this unique feature that it accommodate everybody with various quantities of discretionary income and allows slow and steady approach to acquisition of Bitcoin. More like spreading what you could've bought once across a longer period of time to achieve it. Taking reference from my example above, you'll see that the guy that lump summed and got 3BTC can never be compared in profits to the other guy buying $100 weekly from early 2023 when Bitcoin was $16k until now. The guy who bought with lump sum is leading, which makes the accumulation strategy very much valid.
There's no accumulation process that's more effective than the other when employed correctly, the goal is to buy more Bitcoin and enlarge your portfolio and most importantly having a long-term holding plan.