The old gangs look like honors English classes with attitudes. The Jets and Sharks carried switchblades. Today's gangs wear switchblades as earrings. Then they carry Uzis and are better armed than Sweden. When the Jets and Sharks got testy, they had fistfights.
Modern gangs have drive-by shootings.
The Jets and Sharks not only didn't have assault rifles and specialize in drive-bys, they didn't even have cars. Life was so much tamer then, as were high school hallways. Paper wads were a teacher's greatest threat, not knives, razors and assorted pocket cannons. Today's gangs do drugs. The Jets and Sharks did milkshakes.