Riding the bus is a lot easier to swallow when it's magic.
A school bus is an exercise in survival of the fittest, Lord of the Flies-style. A city bus is an exercise in avoidance at best, and musical chairs at worst. But if the bus you were riding was magic, you'd have a completely different outlook. The crazy person trying to chat you up is probably just from space! You know a lot about space because of your Magic School Bus Space Science Kit, so for the first time ever, you have a lot to talk about with this alien life form omitting the peculiar smell before you, which you've also come to appreciate thanks to your Human Body Science Kit.