Minor hockey is usually where player learn the game and how to play it, it's not very often you see a game with kids that are probably under 10 descend o to chaos, but when you do, it's certainly entertaining.
In this particular minor hockey game, it looks like the blue team was looking for a way to set it off, number 33 pushed a player on the opposing team, presumably during a stoppage on play and as a result a line brawl broke out and the referees lost control of the game; take a look.
Some Will think this is funny, others will think it's wrong, but at the end of the day, you can never get rid of fighting in hockey. It's ingrained in the sport no matter the age.