That's not meant to be spend on investment if those funds is for their basic needs. People need to erase that thoughts of using that funds since they might struggle to meet their daily needs if they do that.
What they need to understand is what they should use is their discretionary funds since they won't get any issues for using that money especially that they already done taking care those more important matter and the money they use to invest on Bitcoin is what left from those things that they need to pay attention first.
Bitcoin investment is long term commitment and people need to think better approach to deal with it so that they became more consistent on each actions they do.
Bitcoin investment is long term so people as investors can not think too short term because it will decide how they plan their investment, finance and what they do before and during their investment experience. All these things will decide how they end their investment with profit or loss, Bitcoin does not decide it. While Bitcoin has very good ROI over years, it is about long term ROI and if investors can not hold bitcoins for a long time like many years, their portfolio ROI can be negative, and not profitable.
They must commit themselves on manage their finance well in order to make sure that they can increase holding ability and better chance of getting profit.