As easy as DCA seems for us on here, not everyone are capable to DCA with convenience, some are trying to hard to get it done, even if it's just a $10 per DCA, situations are never going to be on the same level, it's easier for some and it's harder for some, in my country jobs are not paying enough monthly, to enjoy DCA in Bitcoin you either have other rare skills or you leave the country, there is no way you won't find DCA very difficult if you are living in my country and surviving with monthly salary as a government worker.
To DCA is as hard for some as it is to even make the first investment in bitcoins. Some people who have little bitcoins and have the need to increase what they have by DCA are struggling with meeting up because of how tougher some of their economy has become and is going. DCA is more convenient in a good economy than in a tight one where the amount of money that is being earned by a worker being not enough to solve the increasing expenses. To DCA in bad economic conditions will require a lot of discipline and comitment.