...There is no need building an emergency funds to protect your bitcoin investment when you don't have any bitcoin because you have nothing to protect...
I think this your statement is very wrong. Emergency funds is very important for anyone whether they are investing in bitcoin or not. Since emergency situation like paying of hospital bills, car repairs , accident etc, this are situation that we don't have control over hence there is need to have an emergency funds since since such emergency situation doesn't just occur to bitcoin investors alone. Having an emergency funds before investing in bitcoin will help in protect your assets.
You are the one getting it all wrong here, in bitcoin investment what you should first figure out before making purchases is your discretionary income so what's the need saving for emergency fund when you don't have any discretionary income to get started with, rich folks can make arrangements for their emergency fund and discretionary income at a time it's still not wrong because they have money but for low income earners or no coiner you can started if you don't your emergency fund ready as long as your discretionary income is ready and later get your emergency fund gradually as you are buying bitcoin.