Most planes board on the left, but it's not just tradition. Dive into the real reasons behind this global standard, and when ...

In most commercial aircraft, the captain’s seat is on the left. By boarding passengers from the left side, the captain can have a clear view of the boarding process.

According to Sharpe in his video, "The reason we always load and unload planes from the left-hand side of the plane is a carryover from when humanity moved on boats.". 113261792.