"Don't participate if you don't understand the market" seems to be a rational choice on the surface, but many people say this not because of the lack of trading opportunities within the strategy framework, but out of emotional fear and disgust.
In other words, they don't choose to wait and see because of the complexity of the market, but because they avoid the market because of fear of volatility and uncertainty.
After all, how can you make money if you are afraid?
Fear is the mind-killer.