We allow head and face controlled contact. We allow head gear. No face shields unless there is a medical reason.
When we go to tournaments you can see the difference. If one of our kids gets hit in the face it's usualy OK been there done that and I can give as good as I get.
If a kid from another school experiences even light face contact they are often emotionaly and mentaly crushed. Now, what do you think will happen in a dstreet altercation?
Sometimes contact is "Too Hard" spit happens. If it is intentional we put lid on it. BUT I exppalin that getting hit hard can be a great learning experience. You learn that A. You can get hit; and B. It hurts; and C. You can usualy keep going; and D. Payback can be a great experience.
"Pain is a great teacher, but no one wants to go to his class ." (General Choi)