While it isn’t common, however, it ranks fifth in the boating-related accidents that took place on recreational boats throughout the U.S. in 2019. Understanding the reasons people get into accidents is crucial for ensuring safety on vessels.
Source: https://uberbrowse.com/what-is....-most-likely-to-caus
The main reason to fall overboard is while in a boat that is moving. If a boat is moving, there is a higher chance of being tossed around by the waves that come from the vessel or the rough waters. Boats of smaller size can be unable to maintain their balance and fall overboard.
While people can get swept overboard in large vessels like cruise ships and the like. It’s not commonplace and the primary reason is that they are not standing while the vessel is moving. The majority of the time, these accidents result from intoxication or recklessness in general.