What was the trip around South America impractical as a trade route?

The trip around South America, particularly via the treacherous Strait of Magellan, was impractical as a trade route due to its long duration, unpredictable weather, and hazardous navigation conditions. The journey was time-consuming and often fraught with storms and rough seas, making it risky for vessels and cargo. Additionally, the lack of safe harbors along the route added to the challenges, leading traders to seek more efficient paths, such as the Panama Canal, which was later constructed to facilitate faster maritime commerce.