Because those just starting out in investing generally only know that buying when prices drop is a good way to invest, this is similar to the Lump Sum strategy, which requires waiting for the price to drop before making a purchase, a common practice when first starting out.
You are not buying with lump sum when you are waiting for the price to dip and buy with higher amount, you are only buying at the dip and that's not encouraging. Lump sum is when you use a good apart of money to buy bitcoin once at a go irrespective of the price of bitcoin at that moment.
For instance, you have $200 given to you and you don't have any budget for the money because you are not expecting it. If you buy bitcoin right away with the money, you have lump sum. Buying with lump is a way to front load your bitcoin investment.
According to my little experience and what I have understood, I think that instead of buying with a lump sum, it may be better to deposit gradually in the DCA method. But those who have the ability to invest with a lump sum, they can buy with a lump sum, but for them too, the DCA method may be better instead of buying with a lump sum. Because you cannot buy at the right price, if you buy with a lump sum and the price drops a little tomorrow or next week, you may regret it, but if you invest in the DCA method, you do not have to worry about the price. You will be able to buy at any price.
There is nothing wrong using the lump sum strategy to accumulate Bitcoin that won't still stop such investor to use the DCA strategy too, if an investor lump sum when the price is high while will he also regret if the price of Bitcoin drop don't you think he will make use of such opportunity to accumulate more Bitcoin? Unless such person is a trader who targeted to sell in any slit increase.
feel bad if the price of Bitcoin drop after buying high that is an advantage to accumulate enough Bitcoin if you may as me.