As do you think that a world class trader will allow themselves to be copied for a single second? If you want to have the privilege of your money following their strategy then you have no other option but to hire their services, which are not cheap, and you need to have a massive amount of money just to have a chance to hire them, as there are countless people which would like for the privilege of their money being managed by them.
Thus, for them, it becomes the realization of their knowledge, they simply teach beginners what they know themselves, but the result in trading will still depend on the beginner, because in the end he will have to analyze and make decisions himself.
Copy trading is also not something to strive for, what will it give a beginner in the future? No personal practice and understanding of the market, at best, a few successful copied trades and that's it. And when you have to trade yourself, then everything will be different, you need to make decisions, this is a completely different matter.
That's not what I think will be the situation for a long time but as long as you let it be like that then we are going to get newbies who will start at a good level, and be better with more losses they have because they will learn from their mistakes. The ones who do not, will end up giving up or losing even more.