My son has just started playing football in an under 8’s team, the coach has them practicing headers even though they aren’t allowed to head the ball until they’re 12 according to google.
I’ve spoke to the coach as I don’t want my son to get head injuries or dementia, he point blankly told me “he’s the coach and he can do what he likes”.
My son loves the team as a lot of his friends play, would you allow your son to continue heading a ball or pull him from the team????
Source

No balls should be touching an under 8s head! tell him your son is not doing that – if he continues report him to the club!