Your aim to make "commuting meaningful" is so touching. Adults tend to see commuting as something boring, while children tend to find anything wonderful. I see that this actually teach a moral for the parents, apart from the children. All the best!
Thanks for the input. Indeed this is a very raw draft that I tried to pull out from current parenting project that I was involved in, so now i think again, it's indeed a bit too much of "adult perspective". Will do my best to accommodate more of the young reader's view.