Crypto currency it's a digital banking where by it enables you to know things. It's very important to learn from others because you will get to know more about crypto ans how to invest in the future on crypto currency like for instance Bitcoin, Bitcoin cash and many more. So the information you gathered from learning from people will help you know more about crypto currency.
Of course, learning from people is great, but at some point, you will have to make decisions on the information that you prefer to stick with because not all information might be correct, and not all information are worth sticking with. You made mention of Bitcoin cash, which so many people are not even interested in, and won't even want to discuss about. You just don't want to be the type who's always caught up in trying to figure out what to believe and what not to. You can learn from people, but you can as well do your own diligence by figuring out things for yourself.