Roll Bars and Seat Belts For Karting?

Is there a case for the use of roll-over bars and seat belts in serious competition kart racing?

The junior driver in the clip below rode the rear wheel of the kart ahead and flipped - not an uncommon scenario. But check out the effectiveness of the rollover bar.

Sure, the kid gets thrown about, but according to the text, he was uninjured. Now, think about what might have happened without the rollover bar, particularly the first upside down impact. Broken collar bone maybe??

Of course, being strapped in and having that bar protruding can cause a raft of other new problems that would need to be researched.

But one thing is for certain - if rollover bars and seat belts are used, they need to be used together, or not at all.