As soon as you come to the realization that bitcoin is the apex asset class, you will want to do nothing but smash buy whenever you get money. DCA is for those who do not yet understand the paradigm shift that is bitcoin.
DCA is for everyone; you can consider it, on the other hand, to be a disciplinary tool used to acquire as much bitcoin as you can, maintaining an average buying amount not because you don't understand bitcoin price flow very well but because that's what you can spare from your earnings at every given month or week to accumulate bitcoin until you reach your desired target, which some might keep on adjusting. Price doesn't become a barrier to buying using the DCA method.