Not all mentors to be that worth or ideal on which some of them are just basically teaching you into the things that could be searched up online.
all information can indeed be obtained online. but that alone for some novice traders will not make them brave enough to start trading. some dare to try to experiment on their own, but some need direction from others to get started. mentors can help in planning trades and also evaluating after the trade is completed. so we will have input for our next trade. some traders develop quite slowly when they trade with their own learning. but for some others still feel comfortable with the process.
Those people are at a severe disadvantage compared to the rest of the traders that can learn on their own, after all, you will see that most of the traders you can see out there learned to trade alone since there was no one that was willing to teach them, so by having to find a mentor, those people are not only using money they could use to trade, they are also wasting a lot of time, since finding a good mentor is very hard, as the majority of them are not profitable traders.