Yes! so true but they are only limited to their holdings,waiting for speculations about the markets  from analysts to take actions, they are quite useful but do you even know how they do that??
Well, they might get the right one or even the other way round or even get confused entirely.
Learning to read a chart as a  holder could be done just to understand how the market works not learning to become a full time trader lol,we still need news from every source to determine our actions most times.