https://www.bbc.co.uk/news/uk-scotland-51129653

This has already been implemented in the USA since 2015 and presumably has very significant implications for the future of the game if it ultimately gets adopted worldwide. Remove heading from the game and there's a massive change in the way football is played. What happens at corners and set pieces? Not to mention the way defenders and strikers are coached.

If long-term health issues are the key factor here, why limit the move only to under-12s?