Personally I really don’t think someone who is struggling to survive can go into investments, before going into Bitcoin investment one need to be financially stable, having a reliable source of income also support and help investment and one also Need to be prepared emotionally before investing into Bitcoin , having a clear picture that investing in a longer term is the goal ,and they must make sure daily needs are met with that it can help in market volatility, all this will contribute to the success of the long term investment .
For example, if someone invests and spends a lot of money on it. If he spends more than his stable income, then he may end up in debt and have to sell his holdings.
I think you are a bit confused in what you are actually saying here, what you should be saying here is that you shouldn't invest more than your discretionary income because anything done outside that smells trouble for your holdings, as long as you are doing it from your discretionary income, you have no worries.
But take note that your emergency funds and backup funds needs to be set aside from there in case of any real life emergency that may arise in the future.
Create an emergency fund equal to 3 times your stable income.
With this statement here, it shows that you are even more confused with your choice of words, I believe that what you wanted to
sayingsay is your emergency funds should be big enough to Carter for your basic needs for like three months if their is an issue like lose of job in the future.