I see common sense as something a person acquires in life due to experience. And at some age range, the person is expected by most folks to know these certain bits of information and act in the "appropriate" way. I can see it as possibly varying from culture to culture and perhaps from subculture to subculture and so on.

I don't think that smoking and the other actions mentioned in "Psychology Today" would be examples of not using common sense. Now, making sure to take the cigarette out of the pack before lighting it would be common sense to me.

We don't say that a baby has common sense. But over time we learn about fire and watch people engage in their preparations to smoke.

I am just thinking out loud here. Please don't say I don't have any common sense!