Playing chicken with a semi is just textbook stupid.
It's pretty clear after seeing this video who is at fault for the 14-year-old boy nearly being run down. The incident took place in Staffordshire, England back in October, but the dash cam footage was only just released. The truck was traveling at 54 mph, which is under the 60 mph limit for the road. The driver wasn't charged with anything in the incident. The boy was treated for some minor scrapes and bruises resulting from him believing that he could outrun a semi.
Quite a lot of us have done stupid things in our youth to impress our friends (perhaps you still do). That's really nothing new, but this is pretty exceptionally stupid.