It is true, DCA is just a buying strategy and I have also explained that it is not only with the DCA strategy that makes someone successful when investing in bitcoin. Because I have emphasized, that it is the long-term HODL that will make someone potentially profitable when investing in bitcoin.
In addition, if you say that DCA is mostly used by novice investors only, I don't think that's right. Because basically bitcoin investors who have been in it for a long time also use a lot of DCA buying strategies. So with that, I think your assumption may be incorrect in this case. And not a few people who are able to invest in bitcoin at once, decide to do DCA too. Because basically DCA is a scaled purchase which of course it will further optimize our bitcoin purchases.
When do people adopt the DCA method for investment?
People adopt the DCA method for investment only when they think that they will continue to invest for a long time. That is, we can say that investors who adopt the DCA method think about investing in the long term. Because they adopt this method and invest some part of their discretionary income on a daily/weekly/monthly or sometimes yearly basis. If you imagine Bitcoin, then - suppose person A starts investing to buy 1 Bitcoin. If he does not have any one-time partner, then if he starts investing in Bitcoin at $ 200 per week with his discretionary income, then he will have to invest for a long time until he collects two Bitcoins. That is, to make the investment long-term, first of all, a target should be set and there should be a strong commitment to reach the target. At the same time, the purchase should be continued by adopting the DCA method.