I see your point, but one thing about investment is that what you put in stays in, and you need to have something that keeps you going without touching what has been kept in for the long run. It is okay to stop adding into the investment plan for the reason of needs, but don't take off from the investment if the need is not very crucial and necessary. Taking some discretion in one's investment is very crucial and here in the crypto industry, we know very well the importance and power of patience.
This is why it must be emphasized that savings and investments are not the same thing. Savings you can get from when you need the money but investments, unless you are ready to take out everything and you are already content with what you have made as profit.
A person needs both savings and investment because in an emergency, money may be needed which can be supported by savings because investment can never be withdrawn at any time. Investment is made for profit and until the expected profit is not obtained from it, that investment cannot be withdrawn or should not be done. If my investment has to be broken in an emergency, then it is better not to have such an investment. That is why we have to keep some savings along with investment which will support us in an emergency moment.