emergency funds is very important that every bitcoin investor most have but it not that necessary that someone most have emergency funds before it can start it bitcoin investment
IMHO.
It's important that someone has an emergency fund before they invest in any investment or to Bitcoin.
Why? Because if someone spends his emergency fund into investment and they need it for what it is intended for.
You'll get the picture of what will happen next and that's about selling that. So, it will become no use if someone wants to invest for the longer and yet they have to sell it for some unforeseen event.
Having emergency funds is a good idea, but I don't think it's necessary to have it before investing. I think we can plan for that while investing. Having multiple sources of income is something I think is crucial for new investors because it will help them reach their financial goals and allow them to save for emergencies from their income.