Any form of passive investment no matter how small the return is always better than leaving your money under your bed or in the bank to depreciate. We cannot rely on passive investment and income to survive, funds that are channelled into such investments are some percentages of incomes that are gotten from our active jobs  and profits from our active business and investments. It is only a few investments like Bitcoin that I can say will give you reasonable profits on the long term. Relying only on passive income to survive is not a good financial plan because you need to invest a lot of money to be getting reasonable returns to take care of your needs .