That’s the risky business right there. Trying to make money without really doing anything is a big risk and should be avoided at all costs.
Copy trading is unlike Ponzi schemes, where you are not doing anything. It is still trading, but you are copying someone else's trades. For example, if the trader you copied purchased a bitcoin at a specific price, that will also happen to your account; if he profits, you will also profit. That is why most newbies tend to go here since they have capital and just want to trade easily.
I haven't tried copy trading, but I have attempted it before. There are tons of fees once you copy a trade, which is why I did not pursue it. Also, just because you copy a professional trader doesn't mean you won't lose; he will still make mistakes, so you will still lose, but most of the feedback I've seen indicates that in the long run, you can really profit from it.
I have been about to do copy-trading, but it does not seem reliable to me, because each operator who places his operations, for me it would be great if he put the reasons why he places those signals, we did not know if all they give is to luck or because they invent them, if we pay for a service we should at least know the reasons why they make those signals, it is the most logical thing that I see for some cases, of course this is what I think and ´I know that they do that on no platform So I think that is a flaw that we as consumers have always had, because if we see the why of things we can choose the best trader who does or offers the service.