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The point is that DCA must not be applied by individuals with regular incomes, even those with incomes that are not regular can apply the DCA method.
That's right, I agree with that method. To start DCA it is not necessary to have a fixed income - if someone has an income only once in a while, if he is good at managing his finances, he can set aside a part of his income to be able to carry out DCA for some time. Even though this is quite difficult for some people, if the person is consistent and able to manage their finances well, it shouldn't be a problem for them.
Investing in DCA method will make our investment much easier if we have a fixed source of income. Because when we invest with any money but we have to hold it ie we have to deposit that money. Even if we want to but we can't withdraw that money because we have already invested in Bitcoin if we withdraw that investment money then our investment journey will not be successful. For this we need to have a separate source of income from which we can use money for our necessary expenses.And we need to make a plan so that we can invest a certain amount of money in bitcoins on a monthly basis.