It's that "common sense" is more a function of good advertising than, you know, what actually makes sense.
It's "common sense" that pedestrians should stay out of streets--except that that was the result of careful lobbying by auto makers in the early 1900s.
It's "common sense" decades ago that cigarettes didn't cause harm to anyone --except that they do.
It's "common sense" that piracy is tantamount to theft--except that copying a file does not deprive the original owner of their information.
"Common sense" is a tired refrain used by people who are either too narrow-minded to actually think through policies or who are shilling for a larger player.
Maybe you should start thinking critically about why things are the way they are and whether or not that's actually necessary--after all, that's just common sense.