Not everyone can afford to invest in BTC, due to lack of capital but at least if you want and want to why not, and I agree with what you said about the DCA method which is intended for these people. But isn't it better to collect money first for some people who are unlucky or whose jobs are below minimum wage. Because if they try to invest even if it's only a little bit of what they can afford, wouldn't it hamper their finances more, and would it be more risky for their own lives, because investing is not far from the risks they will face. Isn't it better to be slow but sure to minimize something that is not wanted?
You are right here! Investment is not for everyone but people also misunderstand this statement they feel you must be rich before you can invest and that when they mean by not everyone they meant the poor should avoid investment which is not true. In previous times the poor were the ones who see investment as a way out of poverty until this era the rich became part of it and started gaining shares in companies and invest in potential projects. Both the poor and the rich are allowed to invest. Although it is easier for one rich because they can afford anything, however the poor can invest in as much as they have taken care of the most important things (emergency funds, feeding and other things).
What the differentiate the poor and the rich in their pattern of investment is that the rich are not afraid to take high risk. It is a criteria that the poor should pay close attention to risk management only in that way can they succeed in investment just like the rich. The reason is because if an investment goes wrong the rich ca easily invest again because their disposable funds are high while the poor would feel so down for losing such money. Which is why the poor must minimize risk and avoid greed in investment.