DCA method is a nice approach but the ability for it to show how important and relevant it is, an investor have to use it very well because DCA alone can not do anything it is just a method.
Actually even though DCA is just a method, but we can not presume that it can not do anything. As far as Bitcoin investment is concerned every strategy is good and best suitable for you depending on how your source income and or your discretion can be able to withstand it. Any method is fine provided that it fits into your financial capacity. lets say a person may only chose to invest in Bitcoin using only the DCA method because he recieves payment every week or month and is able to source out his responsibility and also emergency and reserved, then he can also invest on weekly base on his programming. But if he the type that receive payment from contract like once in 3 months or 6 months then the person may only adopt the lump sum method. in this case such person can only figure out the suitable strategy that fits into his income source, from that he may do well in a long run if he can be consistent and focus. Nevertheless combining the 3 strategy is also good but will only be possible depending on source of income or your level of discretion. The matter is that we will find a more convenient way to invest and not getting tired quickly including adopting only one strategy depending on our situation.
Whatever strategy that works for you is fine so far it's making you to buy and hodl, also not affecting the quality of your life. Why DCA method is highly recommended is because it helps income earners to be focused on their accumulation plan by mapping out a specific percentage from their income to use in buying. For investors who are not on salary who don't receive fixed income, they can buy when they get profits or payments depending on the percentage that they are comfortable with to buy Bitcoin. The important thing is that you have in mind to hodl for the long term according to how you earn your money, your method or strategy is secondary.
I agree with you. In the case of long-term investing, differences in investment can be observed depending on the type of income people have.. if that investment is ongoing for a long time, then there is no problem. But if someone invests but after a few days is in a situation where they sell Bitcoin, then at the end of the day they will lose. Now those whose income is irregular, for example, someone earns a large amount of money every 3 months. They should calculate the expenses of their family for three months and find out the amount of discretionary income. And from there, how much money they will invest in Bitcoin will depend on his wishes and condition. Now let's say the income he make after three months is like $3000 to $3500. All their expenses cost $2000 to $2500 for every three months. Now their discretionary income is like $ 500 after every three months. From now on, if he wants, he can invest $250 to $300 in Bitcoin regularly every 3 months. The amount he invests depends on his situation and how aggressive he is about investing. Along with this, he has to create a reserve fund and an emergency fund so that if any unexpected event happens in the future and he gets into financial trouble, then he can solve his problem from these funds. And he can also continue investing in Bitcoin.