Most important in crypto is stable income everyday.
Just becouse btc are so slow i dont trade btc with futures much but If i do then i also trade others i dont keep my hopes on btc much.
This where greed begins. There is no assurance crypto will guarantee a stable income that flows everyday. In our regular business we experience losses how much more a market with no fixed direction. Future trading works well with BTC just that the trader will have to know the exact timing to access the market to stay in profit.
Actually you are right in your conception over manual business getting lose, but you can't compare the lost of manual business and trading, because the lose in trading might be efficient than the one in the business, but let us just consider both as a risk, and if you don't get lose in trading what should be the remedy is to study and comprehend the rudiments of trading before venturing into it, so one of the factors while some get lost in any kind trading they venture into is the ability to peruse into it and as well known the functionalities of trading before enrolling in it.