People who have book sense usually have common sense too. And a kid can learn one or the other at anytime.
But i would rather my kid have common sense ofcourse. Common sense is like simple shyt breh. For example "don't run out onto a crowded freeway and lay in front of an 18 wheeler" <-- thats common sense. Kid without common sense wouldn't be able to survive a walk to the store.
Maybe you mean street smarts though. In which case i would rather have my kid be booksmart. My kids aren't gonna be spending any time in any streets,
yeah but if your kid understands the basic laws of physics and probability, then they would realize running onto a crowded freeway will lead to their death. so book smarts also helps in this predicament.
"common sense" sounds like a misnomer to me anyway. if someone has a high level of "common sense" then its really not "common" anymore. therefore, its either something you have, or something you do not have.
so to break it down, "common sense" is really just the ability to perceive things, understand them, and deduct reason based on logic. in order to have "book sense" you naturally have to have "common sense" otherwise you wont even know what the hell the books are talking about. they would just be random words strung together, you wouldnt be able to truly comprehend the knowledge and apply it.
so i think its hard to separate the two. sure, i know people that have excelled in school, but seem to lack when it comes to logic and deductive reasoning. i also know the opposite. i guess in that sense i would rather my kids possess logic and deductive reasoning. you cant really teach those skills. you can always teach the stuff thats in books.
but again, invariably, someone that is skilled in deductive reasoning as well as logic will become "book smart" as well because thats the logical way to make the most use of their natural abilities.