As others have said, etoro has been in this kind of "game" - https://www.etoro.com/en-us/copytrader/
No, it's been in the market as I have said, perhaps it was not well known though.
On the contrary, new traders should stick to the old and traditional way. What I mean by that is that they should learn from scratch because it is more fun and rewarding, instead of just being lazy, by copy-trading someone's success. So where is the adrenaline rush there? Not very challenging for majority of us. Let to trade by yourself in the beginning, I know that there could be challenges, but treat it as a journey, and I'm sure that once you find success it is going to be very rewarding in your end.