By holding BTC you already have steady income as the value increases 
Other way is: you put a large sum of money in the bank and convert the interests to btc. But in order to make any significant income, initial sum should be really big.
Other way is: you put a large sum of money in the bank and convert the interests to btc. But in order to make any significant income, initial sum should be really big. I don't really agree of this thing. Holding a bitcoin is not considered as a steady income it is belong to investment.Because base of my research there was a inflation and deflation happening in bitcoin.It's seem you already know this I think you just forget.If you want a steady income then you find a stable job that fits onto you and also you had passion of that work.
He wants an income without having to work. As per holding BTC - theoretically you can do the following: have like 10 btc and when the value in usd reaches x, sell btc for e.g. 100$. Repeat when value of what is left of 10BTC reaches x again. This would be viable while btc increases the value in usd. It is however not the smartest way - but it is possible.
Inflation in BTC is completely predictable since it's a part of protocol, thus it is different then in fiat where you can simply print the money if you need it and you're the government.
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