"With Derrick, I knew his buddies in high school would still be his friends," said his older brother Reggie Rose, who is also Rose's manager. "His peers are his peers. The only people I was worried about was older guys. He's 22. There shouldn't be a 40-year-old man hanging out with a 22-year-old. I build a shield with those guys. If you're over 30, you shouldn't have anything in common with him unless you want something from him."
http://www.espn.com/blog/chicago/high-school/post/_/id/1111/bulls-rose-stays-close-to-his-roots

Maybe if he had 1 old head in the crew they might have said "wait guys, this might not be a good idea!"