You are right! The DCA method requires a lot of patience to operate, which is a method of depositing bitcoins over a long period of time. This method is only applicable to those who have enough floating cash because the DCA method should generally be run continuously so that the unit price will decrease over time through successive purchases and more and more bitcoins will be added to the stash. Regular accumulation can build up your portfolio to be fairly decent enough to reach that size within 2 years. At the next level you can be aggressive in accumulating which is to own more assured holdings within 4 years. You can drive for longer periods if you wish which is 10 years or more and guaranteed high future profits.
Yes no doubt about these, it's a fact that is why is very good for long term holding DCA is not for people in haste even when it can accommodate all kind of investor, people without I strongly doubt any body who is having patient problem to do well in this even in other strategy Bitcoin investment generally need patient, if one have the mindset of holding for long time patient must be involved.
Buying gradually before one kick start to be aggressive helps in the DCA it make you more relaxed but achieving the accumulating unexpected Bitcoin without stressed all one one need continuous accumulating and patient.
You seem to be mistaking the DCA method of buying bitcoin for a way of holding bitcoin. The DCA is just a way of buying bitcoin in a regular fashion such that the amount invested is what the investor can inject into bitcoin consistently without feeling any financial pressures. Although the DCA method remove the pressure to sell your bitcoin, it is not all that is needed to hold bitcoin as holding is entirely a different thing of its own.
To hold bitcoin, the intention must be clear and the plan made before the investment is made. Some of those plans are setting aside funds for basic needs as well as that for emergency funds to take care of other needs that may arise that are not planned for. One can also setup reserve funds depending on his financial capacity just so that there is no pressure whatsoever that will make the investor sell the bitcoin being held.