They're not just the little hairs that your horse (adorably) always gets food stuck in - whiskers actually serve a very important purpose. It's common to want to trim them so they look a little neater, but if we consider the needs of the horse, we should forego the scissors or clippers. Want to know why?
Vibrissae around the eyes and muzzle help horses gauge their distance from objects, and some evidence shows that they might actually be used to test electric fences
They are extremely sensitive and help provide tactile information in the horse's environment
This is similar to the function of whiskers for many other species, such as cats
It's important to consider why certain features of the horse exist before we seek to change them