The crazy part of this is that some people don't even know it is necessary and compulsory to have an emergency and reserve funds, some people feel that once they have gotten some fraction of Bitcoin they are now good, no need to invest again or no need to have emergency and reserve funds which very wrong. Investing only once won't give us the profit we need in years coming that is for someone that purchase a very little of Bitcoin and for someone that purchased a whole it will give them the profit dey want somehow but then you need emergency and reserve funds to keep that Bitcoin safe and untouchable in your wallet and failure to do this will result to unsuccessful investment.
There are some people who have not prepared an emergency fund and a reserve fund yet in their investment journey, but we can call them successful investors. The number of such people is very small, but they exist. So we cannot make emergency fund and reserve fund mandatory for everyone. I think it is very important and should be an integral part of investment, but not mandatory.
Think about people who have a huge amount of cash flow that can bear their expenses for 10-15 years, do they need a separate emergency fund or reserve fund? That cash flow can fulfill the work of all your funds. There are even people whose responsibilities are on others and all their expenses are borne by others, is an emergency fund mandatory for such a person? I would say, no. Because he has an expense bearer for emergencies.
Your situation will determine what you need and what you should do. An emergency fund is mandatory for some people, and important for some people. So know your position and take the necessary steps. Don't put everyone in the same queue. You shouldn't even follow someone who doesn't need emergency funds. Because their situation is different and yours is different.