The dollar cost averaging method dca doesn't even give you an opportunity to buy bitcoin at cheaper price but with it you can be buying little fraction of bitcoin with your discretion income either every weeks or months without considering if the price of bitcoin is high or low, using the dollar cost averaging method doesn't mean you will buy bitcoin very cheap it's not true.
You sound confused and complicated, your narrative doesn't precisely define the concept and I dea of the DCA strategy, with the dca strategy you are only buying Bitcoin within your financial level, a fraction you said yes and not a whole Bitcoin, it becomes cheap since you are only buying within your own financial level and not in comparison with what others that are not in your level either below your level or above your level, that is to say buying Bitcoin has become cheaper to you because you can afford the one or amount of your own level making you to own it and be part of those that own it, isn't that beautiful enough for you to say that the dca strategy makes buying of Bitcoin to be cheap and affordable?
DCA strategy makes investors more interested and save, no matter where you calculate, the DCA method helps the investor in an incomparable way. Because if you start investing in Bitcoin once, then Bitcoin will definitely beckon you to invest again and again, because you notice one thing, the more you invest in Bitcoin according to the DCA method, the more the amount of Bitcoin in your wallet will increase. Because you can use all the money that you were wasting carelessly and unnecessarily, this is the biggest benefit of the DCA method.