> Why are [large vehicles] so exciting to a kid? Perhaps it is obvious: they are loud, big, fast, complex, powerful. There is the element of danger. Adaptively, there must be a survival advantage for children who are curious about loud, large, fast beings and objects.

https://www.earthisland.org/journal/index.php/articles/entry...

I don’t see the correlation, sorry!

I’d expect an adult to be more familiar with a bus by virtue of having taken the bus more often than a child. Whether or not that’s exciting or just a mundane commute shouldn’t affect familiarity.

School buses are a staple of childhood, at least in the US.