Brett Favre On Tackle Football For Kids

Brains fully haven't developed until 16 yrs of age and Favre says kids shouldn't play tackle football until at least 16 yrs old. Here's the story: 

https://www.washingtonpost.com/news/early-lead/wp/2018/04/12/brett-favre-says-he-suffered-probably-thousands-of-concussions/?utm_term=.7679c5200be1