And if he is serious I will invest for him but I prefer the long term but as a age man, really he needs an investment that can brings feed to his table daily and that is why he was insisting on the short term investment buy that cannot do him anything base on the volatile nature of Bitcoin.
Your input can help this man through me.
Indeed, bitcoin is worth investing in and truly profitable, but if he thinks this would give him profit every day, as that person wants to happen, then I would say that bitcoin investment is not the kind of investment he is looking for. I hope I was wrong, but later on, he could find bitcoins that did not meet his criteria and sell them.
Many cases happen like this, and many fail because of their expectations.
I think the OP should tell him that the profit never comes too fast but takes time, which is difficult for impatient people.