Just think if someone is making a lot of money he will share his strategy with others if there isn't any benefit for him. A successful trader won't waste his time making videos to teach others if there aren't any benefits for him on that because trading requires a lot of time so if he gets any free time he will use that with his family or in something fun for a refreshment. Most of the youtube trading channel owner is content creator, not a trader. They earn by making content not by doing trading so the strategy they share is not tested in the real market. They just made those to impress his audiencee.
True, and there they are talking about trading like they are good and how expert they are, even flexing their achievements through trading, which is, we know, a scheme so that many viewers will be attracted and interested in trading, and that's when the content creators will offer their services, such as investing, to them or they are the ones who will handle the trade. Well, there are content creators that are legit, but there are few. I would rather believe if they live stream and show the viewers how they trade or if they really are earning. Sadly, many newbies in trading are being blinded by the luxurious lives of so-called traders; little do they know they are only showing the good side of their trade, not their losses. So don't be fooled in the internet get only some tips and knowledge if there was but never ever idolised them and have the wrong courage in trading.