Emergency funds are the foundation for keeping your investments safe without being touched by various unexpected funding needs. It's like when you build a house, you need a strong foundation to support the entire building so that it is sturdy, without a foundation your house tends to collapse easily. That's how investing is, you must have an emergency fund as part of how you keep your investment assets untouched by unexpected funding needs.
Some inexperienced investors may only focus on investment goals instead of having emergency funds. They don't know what the consequences will be when they need funds as soon as possible, while all existing funds have already been invested. It could be that they have no choice and have to sell some or all of their assets, which will clearly damage the investment plans they have worked hard to build.
There are some things someone who wants to succeed in Bitcoin investment should take note of and one of them is the emergency funds cause it plays a vital role when it comes to being a successful Bitcoin investor, when I mean success in Bitcoin investment I mean holding for many years and meeting one's target, the emergency fund is as important as being patient cause it would help ensure that the investor doesn't tamper with what they're holding in their portfolio to solve problems. Of course as humans we're bound to encounter challenges, some challenges that could even hinder or ruin our investment goals but that's where the emergency funds comes in, it ensures that investor solve those day to day problems and necessities, without falling back to their portfolio to do that. Infact before someone would even think of going into an investment the person should ensure to separate their emergency funds from that meant for investment, it doesn't matter whether they fall under the rich class or not, it's very necessary and it's one of the foundation which ensure one's portfolio remains intact for long-term, therefore every investor needs it to meet their goals.