belting up on school buses

Although i do not take school bus to school or vice versa,i know students who take buses to school and vice versa do not seat down and sometimes they run around or walk their friends' seats.I know that because i take buses when i was in p1.Some of the students of my age are walking around!I agree with Penny Low that all school buses should install seat belts and should have not just the driver but also an extra person to keep an eye on the students who are on buses.