[Scarecrow]

ESS often get used, but again at private fields. One of the main reasons you see paintball goggles at fields, particularly commercial paintball fields that allow airsoft, is that their insurance dictates the nature of the eye protection, and paintball goggles are an established standard the industry recognizes.

ANSI Z87.1 is an excellent standard and I agree with you in that regard, however, there are issues such as fitment and method of securing the protection to the head that are also important that are unaddressed in ANSI Z87.1.

Paintball goggles inherently protect around the edges and angular shots and they are secured using an elastic fabric to prevent them from moving once they're secured to the head and face. While some ESS models do this to an extent, there are also lines of safety goggles that attach only through the traditional frames of glasses, which makes them hazardous as they can move or be dislodged, particular if the player becomes very physical during a game (diving/rolling etc.).