Building an emergency fund before Bitcoin investment is a kind of security for you Bitcoin portfolio a d DCA jurney, because by having that emergency found, you will not have any pressure on your Bitcoin investment and that way, regardless of your overall income and cash flows you can comfortably buy and hold Bitcoin for long term.
A lot of newbies in Bitcoin investment have made the mistake of buying Bitcoin when they have no emergency found or even not having a good stable income to hold Bitcoin comfortably without exchange them when they hard pressure.
It is better that a new investor starts his bitcoin investment right away provided he has a discretionary income as a no coiner instead of waiting to build his emergency funds first, because it will take you quite some time to build up an emergency funds of at least three months of your income. The point here is that since you are a no coiner, you might be waiting and bitcoin price keeps on increasing, you will miss the opportunity in the market and at the same time left with no bitcoin.
Fiat depreciates overtime, which is the main reason why you need to start putting your discretionary income into bitcoin to safeguard the value of your funds. When you don't have a discretionary income, you can build it along side with your bitcoin investment by sharing your discretionary income into two parts. One for your regular weekly DCA and the other part for building your emergency funds till it is up to three months of your income.
Sometimes, emergencies might not occur and we might not even use our emergency funds but we need to continuously and constantly keep your bitcoin purchase ongoing with DCA for 4-10 years and above. There is a lot of time to build up an emergency funds since you are investing for a long time. But the more you delay your bitcoin accumulation, the more you are missing the opportunity of increasing your bitcoin portfolio to your bitcoin target.
Lastly, you don't need to have stable source of income before you will be comfortable in your bitcoin accumulation journey. Only your discretionary income is enough for you to start your bitcoin journey instead of waiting till you have a stable income. Some people have a stable income but don't have discretionary income, such people cannot invest in bitcoin only if they look for a second means of income to get their discretionary income from.
You have spoken well brotherly, waiting to build up or raise an emergency fund before investing in bitcoin is totally wrong or been seen as an unserious investor, because the more you wait to build up an emergency fund before investing is the more time and opportunity been wasted.
However, it is better you have some stash of it in your portfolio before considering raising and emergency funds.