Investing is one of the best way to steady income. Investing is a kind of strategy that your bitcoin will profit more. You will used it when you needed it but you will not use what you invest rather its profit. It is so useful.
It depends on investment if you are talking about hyip then it's not recommended because in the long run it will turn to scam, there are so many types of investment even if you want to trade altcoin it's also an investment