The DCA strategy is not mainly for the poor or people with insufficient funds; the DCA strategy is for both the poor and rich guys. Anyone who uses the DCA strategy to accumulate bitcoin wants to be free from waiting for the bitcoin price to reduce to a certain extent before he or she can buy bitcoin. With the DCA strategy, you can accumulate bitcoin anytime you want to buy it without worrying about whether it is the right time to buy it or not.
Yes, investing in DCA method is not only for poor people. It is better for everyone to invest in DCA method. If you invest without following DCA method you may regret at some point. How to Regret For example: Bitcoin price is currently at $51k now if you invest your funds together unfortunately you may regret if Bitcoin price drops from $51k to $40-45k. On the other hand, if you invest in the DCA method, you can buy bitcoins at lower or higher average prices. So for all individuals rich or poor it is best to invest in DCA method.
And who said the DCA strategy was for the poor? The purpose of the DCA strategy is to control risk. Whether rich or poor, new or old investors, it is good to control risk. This is because when it comes to bitcoin investment, you will experience good and bad days equally, especially when you are into the investment for the long term. If you think you don't have to worry about risk when your rich, then that is not smart at all. As an investor who has a lot of bitcoin in your wallet, you need to secure it very well and control any risk in the investment. Once in a while, you limp sum, which will add more to your accumulation and continue to DCA.
DCA is a very good method for a high volatile asset like bitcoin, and not only that DCA also is a good method for new investors that have little experience with bitcoin, all you have to do is just split you capital into equal parts and invest on intervals, its very stress free and it doesn't involve and technical or analytical skill to acquire bitcoin.
It has nothing to do with beign rich or poor, using DCA does not mean that you don't have huge capital to buy at once, many chose it cause its the best approach to volatile assets, not every have the leverage of having huge capital so they have to use the DCA by allocating some percentage of their disposable cash either from expense or just extra cash to buy bitcoin.