The “over” position for toilet paper is safer due to the shorter reach to unravel and grab the tissue.
Even though the distance is a matter of mere inches, research suggests it creates a safer environment. Moreover, a 2014 Bathroom Safety (BS) survey found that households using the “over” position had 75% fewer falls off the toilet.
Thus, while small, the shorter reach required with toilet paper in the “over” position ensures bathroom safety and prevents injury, making the “over” position superior.