I agree with you because bitcoin only teaches you to make this investment in bitcoin, here is a waste of time investing in something else or trading. People who are used to trading enter the market with a short-term mindset and may exit with some profit, but this process is destructive to the business in the long run. It should be understood that short-term trading does not go with Bitcoin. DCAing is an ideal strategy to generate positive returns on your investment. But if you have extra funds it may be reasonable to dip with Bitcoin so that you can live comfortably and longer.
One can decide to diversify their money in investing In other project when they have gotten to the point of having enough Bitcoin in their portfolio, and most time I prefer recommending diversifying your money in other project outside this crypto space, like real estate, and other related investment outside this space, but still is ones choice ( but just make sure you have enough Bitcoin already before thinking of diversification). So that you won't endup affecting your Bitcoin accumulation due to the act of diversifying your money when you haven't gotten enough Bitcoin stashed in your portfolio.
But if you have extra funds it may be reasonable to dip with Bitcoin so that you can live comfortably and longer.
yeah you're right, one can be using $100 to purchase Bitcoin weekly for DCAing. And the same time having some cashflow to coverup some expenses when he keep up with his DCAing . If such individual by any chances endup having an extra cash. He can decide to go lump-summing with that cash , to give himself some good headstart in his Bitcoin Accumulation.