DCA method makes you consistent in accumulating Bitcoin from time to time the market, it helps newbies to understand the advantage of investment and how they can manage whatever little funds they can afford to invest with, not all their funds.
It also make them see bitcoin investment as not a get rich quick scheme but a long-term profitable reward investment that need to be done by all.
DCA strategy doesn't make you consistent, consistency comes from personal decision and dedication to your ongoing investment journey. Some investors can be doing DCA and decide to skip a some buying periods out of indiscipline and lack of dedication. So for you to remain consistent, you must make that decision to show more seriousness and not to miss out buying as long as you've your discretionary income available.
DCA only provides the opportunity to buy in bits and spread your Bitcoin buys over a longer period of time to accumulate a sizeable portfolio for yourself on the long-run. It also helps to eliminate the financial burden of having to buy a large quantity of Bitcoin at once. Your level of consistency is a reflection of your dedication to your ongoing accumulation journey.