The important thing is they should allocating the money that free from other needs so they can consistent investing in Bitcoin. That is the problem that most people face so far because they are hard to consistent and still mix the money with the other needs.
The DCA methods can works properly if they understand how to starts and running without stop until reaching their target time and without that, they will not achieve their goals in the long term. It is easy but not easy as its say so people must learning the details and know how to use it properly.
Exactly, the most important thing to invest in Bitcoin is to set aside discretionary income and understand everyone's financial capacity. Many people may have a lot of income but they do not really understand which money to invest in Bitcoin and which investment is the safest and long lasting. If you invest with the money that you use for your own or family's needs such as food or clothing or other daily activities, then that investment will not last. Because this money is not for investment. If someone has an income of $5000 per month but has no money after meeting expenses and all other expenses, then there is no point in investing. Again, if a person has only $1000 per month but has $100 in hand after meeting his expenses and all the needs of the family, then that $100 is his discretionary income and investing with this money is long-term which can be held for the maximum period according to the plan.
And if someone regularly deposits the same amount of money every week or month with that discretionary income, it is called DCA. Which is the most effective investment method used so far for BTC accumulation and is suitable for people of any class and profession, which is used to ignore the ups and downs of the market price and control one's emotions. It provides many benefits to the investor, but of course the investor must manage the investment successfully with a long-term investment plan. Only then will this method yield the right results.