DCA can only be done by those who have sufficient income to cover their living expenses and have money left over after all their needs are met. This allows them to set aside funds for regular Bitcoin investments, whether monthly or weekly. DCA is done with the goal of long-term investing, and of course, ultimately, all investments aim to generate future profits. You might not see those profits right now, especially if you started in a bull market and are now continuing to DCA in a bear market and the value of your portfolio has certainly declined. However, DCA users aren’t overly concerned about short-term price movements, because those who practice DCA truly believe in Bitcoin’s immense future potential. And through DCA, you can sometimes achieve a better average purchase price. But that’s not the original goal. DCA is simply one investment method that reduces the stress of constantly monitoring the market and searching for the best price. DCA is carried out routinely and consistently over the long term.
Even this is true that for the DCA investment you have to be a sufficient income where you will also easily run your living expenses and then a short portion from that you could also invest in DCA investment.
However, having sufficient income does not mean that we have to earn five or four thousand a month. Even if someone's income is $400 a month and if he wants to, after deducting all his expenses, then he can invest in Bitcoin as DCA, that is also possible because in my country, those who earn $400 a month also have savings of five thousand taka at the end of the month and from that they make a fixed deposit in the bank. I think it is much better to invest in Bitcoin with a long-term strategy, at least for four years, rather than making a fixed deposit in the bank. And even if he invests $30 to $40 in Bitcoin on a weekly or monthly basis, I think that small amounts will eventually turn into very large amounts.