It is indeed part of our culture. Take high school soccer: Parents are on the sideline screaming high-pressure "encouragement" at their children.
"WHAT ARE YOU DOING OUT THERE?!" One mom hollers.
"C'MON REF! What're you blind?!" a dad yells.
"GET TO THE BALL! fer Chirsts sake!"
Kids impacting each other with great force to the delight of onlookers.
"AAAAAAAAAAAAAAAAAAARRRRRRRRRRRRRRRAHHHHHHHHHHHHHHAAAAAAAAA!!!!!" one kid says as he is nose-butted by another kid.
"What the fuck is this ref?!" He yells pointing at a cut on his forehead.
"He got me right in the nose." He says as blood gushes from his nose.