The point is that DCA must not be applied by individuals with regular incomes, even those with incomes that are not regular can apply the DCA method.
In a nutshell, have some savings for emergencies than keep applying a DCA strategy forgetting that situations can turn around making you forget other life importance matters to take care of your health by exercising, eating healthy, drinking enough water, having more rest and have a regular 3 months intervals of hospital checkup of the body system.
I am giving this advice because one health comes first and it should be taken care of. I lost a friend in the cold hands of death because he failed to take care of health. His mind is always investing in bitcoin with the little money he regularly gets from his workplace, making him forget that his body system needs to rest and to be taken care of.