Are you just knowing that an emergency fund is for real-life situation all this while, there is something i want you understand, before you can buy or invest in Bitcoin you must have a discretionary income and this discretionary income is fund if you lose will not affect you much and which Bitcoin is beyond you lose all your money that you investment, since you have a steady cashflow you will always have plans for yourself outside Bitcoin investments, and which the same thing you should do when it comes to Bitcoin investments to avoid touching your holding incase if unforeseen circumstances occur you can make use of the emergency which no one is praying for it to happen but we just needed to plan ahead of us since no one can predict the future.
Steady income => steady investment process => good chances that you are going to be okay if the trouble eventually hits.It doesn't matter if you have a steady income or not, if you don't prepare for the days you will be in lack, or in serious health issues, like having an emergency funds in place to sort it out, your Bitcoin holdings will not survive on the longer run because emergency situation is inevitable on the longer run.
Actually, a steady income is a MUST for saving a part of your salary in Bitcoin, especially if you employ a DCA sort of strategy. Because it doesn't matter what you call "prepared", if you don't have a steady income then you definitely ARE NOT ready.
Plus for plebs like us who want to employ a Buy the DIP strategy because, let's pretend it's finally the lows of the bear cycle, then he/she can take a loan to get a lump sum to buy those DIPs. But if he/she doesn't have a steady job, how can he/she pay for the monthly payments of the loan.
No steady income = LOOK FOR A JOB. A Bitcoin investment should be the least of your problems if you don't have work.