The DCA strategy is always proposed for those that have a lot of time to to accumulate bitcoin and don’t have the funds all at once to put in them.
Actually the DCA is not just proposed only for those that have lot of time to invest, but have little funds to do it at once. Rather DCA is suitable for all classes of investors. Both the rich investors and the poor investors. The rationale behind DCA method of investment, is to allow investors invest certain amount of money in bitcoin at a certain intervals, but on a regular basis. So if the rich investor wants to invest in bitcoin but he doesn't want to buy it all at once, he can as well utilize DCA. The main reason for DCA is to mitigate the loss in capital invested when there is a decline in bitcoin market.