Why are dull blades considered more dangerous than sharp blades?

Dull blades are considered more dangerous than sharp blades primarily because they require more force to cut through materials. When a blade becomes dull, it loses its edge and thus its effectiveness in slicing through surfaces. This lack of sharpness means that a user has to apply greater force to achieve the same cutting action.

When using more force, there is a higher likelihood of losing control over the tool, increasing the chance of accidents and injuries. Users may apply uneven pressure, leading to slips or unexpected movements, which can result in cuts to the user or damage to the material being worked on.

In contrast, sharp blades require less pressure to cut efficiently, allowing for more precise control. This precision minimizes the risk of accidents, making the sharp blade inherently safer when handled properly. A sharp blade essentially gives the user better control with less effort, reducing the likelihood of mishaps.

The other options, while they may present interesting points, do not address the primary concern regarding the safety implications tied to the required force and control associated with dull blades.