Why do I feel aversion to left-side trading?

In my view, left-side trading is like a gamble. It bets that the market will strongly rally at a lower price point or that a large number of short positions will emerge at a higher price point. Once the time span is extended, it becomes clear that the success rate is indeed limited, and over time, funds might be completely exhausted.

However, it is frustrating that during market volatility, if one uses a right-side trading strategy, entering a long position often leads to being hit by a sell-off, and entering a short position at a low point is met with a rally. It's important to know that the time spent in a volatile market accounts for more than 80%, so in this scenario, left-side trading has become a helpless choice for many.

However, in my opinion, there is actually a more sophisticated strategy: holding cash and observing. When the judgment of market trends is unclear, holding cash is undoubtedly the best choice. Over time, effectively controlling the profits retained from drawdowns is far greater than the potential losses caused by left-side trading. Waiting while holding cash is indeed the most stable defensive strategy.