At this time, I would request that you no longer post in this thread. --or if you do, please do not insult the other posters.
You use both the word strategy and set up in the same sentence here. Intentionally or interchangeably? Regardless, I respectfully disagree. Trading is not easy and I think your 14 year old son will find that it's harder to play successfully than an X-Box game. If not - he should ditch the X-Box and start trading. MA systems can do very well in trending markets or with huge volatility where you have ample opportunity to turn around AND sizeable swings to make up for losses, but you'll typically get chopped up when volatility dries up and/or the market is choppy/going sideways.
For me it's not so much an MA system as a directional trade. MA's help define geography and figure into filters. When price is sideways (MA's twisted, I don't trade. There are many periods of the week which are directional in my tf's.