what is price action?
Yes usually with reading candlestick pattern to analyze trend market based on price action, there are trader that trying to learn price action candle to making profit and this is also good systemI was going to say that it's kind of self explanatory - price action is the actual movement (action) of price, but I think Cyclon's explanation is better.
We can not say they should use any specific indicator for trading .They will choose their best suited. However practice will tell them all ups and downs of every tool . Nothing is final in forex trading . Some do naked trading and say they are earning good from it. They should try to minimize loss and do trading at right side what they are going to use in trading.