The phenomenon you're referring to, where light bends around corners, is known as diffraction. Diffraction occurs when waves encounter an obstacle or an aperture that is comparable in size to their wavelength. Light waves, including those in the visible spectrum, can indeed diffract, and this is commonly observed in various situations, such as when light passes through narrow openings or around the edges of objects.
However, the reason we cannot see what's around a corner while we can hear sounds is primarily due to the nature of how light and sound propagate. Sound waves are mechanical waves that require a medium, such as air or water, to travel. When someone talks around a corner, the sound waves they produce can bend, diffract, and wrap around objects, reaching our ears even if the direct line of sight is obstructed.
On the other hand, light waves can propagate through a vacuum and travel in straight lines unless they encounter an obstacle or a medium with a different refractive index. While light can indeed diffract around corners, the amount of diffraction is typically small for visible light waves and depends on the size of the obstacle or aperture relative to the wavelength of light. The diffraction of visible light is usually negligible for everyday objects and corners, which is why we cannot directly see what's around a corner without physically moving or using other techniques like mirrors or cameras.
It's worth mentioning that there are certain advanced imaging techniques such as fiber optic cameras or periscopes that can use reflection or bending of light to "see" around corners indirectly. However, these methods are specialized and not applicable to our everyday visual perception.