Not everyone's income is the same. There are many people who work as daily wage earners. For example, after working all day, they are given a certain amount of money as salary, they can continue to buy continuously by adopting the DCA method every day. This will not be bad at all. Because all the people who work as daily wage earners cannot accumulate or save much money. Because they have daily income and they spend almost the entire amount of money from it, so if they want to buy daily by adopting the DCA method, then it is not a bad idea at all.
As you mentioned people who earn daily wages but get a fixed amount of money at the end of the week, they even find discretionary income from it. So if a reasonable income system is created for them, then maybe investing is not wrong for them however since they are getting money after working daily, if they invest the entire amount, it would be an aggressive investment. Many people can learn much faster than others, that means they have a much higher chance of developing, so if after they start investing, their comprehension increases and they can increase the level of work and also increase the level of salary so we can say with certainty that no matter what profession a person is in, investing in Bitcoin is not a huge stressful for them.
For the people whose income is limited or who earn money by working on a daily basis can try to save some part of that income in Bitcoin on a weekly or monthly basis. Although the income depends entirely on the country of which the person is a citizen. If we talk about a developed country, it is not difficult for a person to deposit additional money in his weekly or monthly income even if he works on a daily basis. On the other hand, if a person is in an underdeveloped or developing country, he can save even a small part of his income in Bitcoin if he tries. If the monthly income of the person is $300, he can buy $ 25 per week and $ 100 per month even after bearing all the expenses of his family. If someone can be aggressive and invest in Bitcoin regularly according to his discretionary income, it is also a good idea. It will completely depend on that person's income ability.