Is there any age restrictions, like how old do you have to be to play

I believe if you are under 18 you need full face protection. If you are older its just suggested you wear but not required. Ive seen 10 - 17 year old players come with no issues

Players under 18 must have a parent / guardian signature on our field waiver. Full face is required under 18, but may consist of a 2 piece system so long it covers the full face. Mesh is ok for lower face only. Goggles must be Full seal and Z87+ Rating. Please check your goggle manufacturer for rating info.

Yup