Some people overdo it with backup funds and waste time in starting their investments. As soon as a new investor makes Bitcoin accumulation comfortable, he should set his her goals and gradually focus on building an emergency fund to do so. Surely... I completely agree with you that it is not necessary for a new investor to have an emergency fund in the beginning, nor would it be right to completely reject it. Balancing between accumulating Bitcoin and long term efforts is like you never know if there will be a bad time in your life in the future. You have to assume that bad times are waiting for you and be mentally and physically prepared.
Investors are responsible for their own preparation. This includes deciding how much of their discretionary income to invest in BTC, how much to keep in cash (such as an emergency fund), and how much to spend on additional expenses. However, there may come a time when they do everything right and still suffer losses. While investing and cash flow management are designed to minimize mistakes and risks, they cannot protect us completely in all situations. While an emergency fund may be helpful in some cases, it may not be enough to cover serious or long-term losses. Others sell too much Bitcoin too quickly because they do not have enough savings, which is a result of their own lack of preparation. And if the situation worsens, or if losses could have been avoided or minimized, they must take responsibility for how to strengthen or improve their cash flow management systems and practices for the future.