One reason why people trade by emotions (blind) is because of influence which also comes from a blind trader... There's a saying that "Empty Vessels Makes the Loudest Noise"..
A lot of educators actually influence people negatively in their trading journey because they make trading look so easy and a shortcut to affluence. They will hardly tell you the real truth about trading because they want you pay for their services. People who took these information and enter the market always pay heavily and thereafter learn the truth about trading which is that it is not easy.
Trading is only easy if the trader have been able develop a strong heart for himself and not carried away by any hype from anyone.