Basically DCA is just an investment strategy, while this strategy will most likely not have a big impact on your optimism about the future of bitcoin. There are many investors who are optimistic about the future of bitcoin, but they have different strategies, not just DCA. For me, that's not a problem, the most important thing is that they try to make Bitcoin an investment, whatever strategy they use.
DCA is very useful for those of you who want to take advantage of price volatility to carry out accumulation. Even though you can buy all at once at a certain price, DCA can be considered as a backup strategy if the price falls further than the previous purchase. If you don't set aside a budget, then perhaps you are ignoring the opportunity.
Also know that, you can’t force yourself to be in a position of getting opportunity always and not utilizing them. The market will never make you know when it’ll fall in price or a big dip will happen for you to DCA and add to your portfolio. If you’ve already done your lump sum and you can’t afford to set aside another budget to continue DCA anytime an opportunity arise, don’t feel sad or be bothered. The value of your bitcoin at that time will be the same and what you’re looking for is the long term prospects of it, so the dips and fall in price shouldn’t bother you that much after you’ve done your investment using the lump sum strategy. You should also think that, what if the opportunity to buy low never came and the price you brought from was never tested again by the market? So they’re possibilities to this that we can’t control them, you just have to accept the facts of it the way it is.