You are very correct, having that financial structure in place, cash flow habits paired with intentional investing really does shift everything. the emergency fund might sit quietly but it is presence gives you the confidence and freedom to take calculated risk elsewhere it is like building offense and defense at the same time.
The thing is that you can still invest without being financially stable . The difference is that folk that are not financially stable investment won’t have same pace with those that are financially stable and stuff . Those with rough cashflow can choose to invest as aggressive as they please because they have enough sources or their sources is enough to cover it up or handle it , so having enough cashflow is very big advantages when come to investing in bitcoin , but still you can still manage if you are not stable financially.
The DCA method is the best for every Bitcoin investor, I would like to add something to the information you have given. Because if Bitcoin can be invested according to the DCA method, then it is definitely possible to be successful and it will be possible to hold Bitcoin for a long time. However, we will give more importance to income or income, just as much importance should be given to Bitcoin, the more income sources, the stronger the Bitcoin investment, the more long-term and aggressively it will be possible to buy and hold Bitcoin.
For this reason, income is very important for us to buy Bitcoin, but investing in Bitcoin is as easy as it is to sustain. Because sometimes we have to face danger in the long run, it is very important to use emergency funds to counteract this danger.