If you were to drive from Seattle, Wa to Sarasota, Fl, would you get directions ever few miles or have a map? In days of old on wind sailing ships, maps were called charts, they usually always steered by the stars, so there be star charts.
http://www.pbs.org/wgbh/nova/ancient/secrets-of-ancient-navigators.html
The trouble with just learning moving averages is you be taking trades when the charts are showing reversals, you be taking trades when chart is showing the medium highs are in, or where support/resistance is, there are at least 100 points at a minimum for me of when not to take otherwise good signals, and learning is an ongoing activity on charting. But once learned, you have it a lifetime.
Actually, all the indicators I use lag, lagging reduces trading and longer your study indicators, you will learn where the highs/lows are most likely to turn. And using what everyone else is use, that depends on one's definition of "everyone", if it is retail-no edge, if commercial-I want to tailcoat, volume drives price.