In England, minimum age requirement for coaching (F.A. Level 1) badge is 16 ! That badge will enable you to coach any under-8 team . My nephew got his when he's 18 and has been since coaching his local community team. Google F.A. of England to have an idea of the curriculum. Have no idea though where to do it here. Have heard of people getting a proper F.A. (England) badge in H.K. by doing an intensive weekend course.