SANFL Junior codes

Didnt quite know where to put this, so I just started a new thread.
Any members involved in any Junior sides this season noticed a growing trend of disturbing behaviour from juniors?
In our under 12's game last week, one of our players was punched and kicked by 3 players behind the play.
He came off and took no further part in the game.
He had 2 days off school with concussion symptoms and wont play this week either.
I have coached now for 6 years and I find the anti social play from seniors is definitely infiltrating junior footy from a very young age.
I am no shrinking violet either.
It's disturbing.
Any members involved in any Junior sides this season noticed a growing trend of disturbing behaviour from juniors?
In our under 12's game last week, one of our players was punched and kicked by 3 players behind the play.
He came off and took no further part in the game.
He had 2 days off school with concussion symptoms and wont play this week either.
I have coached now for 6 years and I find the anti social play from seniors is definitely infiltrating junior footy from a very young age.
I am no shrinking violet either.
It's disturbing.