It is important to invest, when the investment has great potential. But I think it is a good decision to also have reserves, because you may it need in the future and this can make a difference.
This is the reason I don't invest my 100 earning. I always prefer to hold some money in my hand or my wallet for any urgent need.
investment is good and recommended from me but you should always keep a part of your money with you and invest only whatever you can afford to loose..
whenever you invest prefer your self for loose also. not only hope for profit.
What you are talking about is called liquidity, a person cannot invest 100% of his money, some of that money needs to be in cash, that way even if something happened you will have a way to cover your expenses besides there are some investments that require a particular set of months or years and if you withdraw your money you will do it with severe penalties.
when you can do it with bitcoin and you will be able to withdraw automatically you if you wishes to. Investing alongside with continues savings will always generate a good result therefore we need to discipline ourselves on that.