The Steady Decline of Common Sense

I once remarked to a professor of mine that common sense was clearly not something required of undergrads. Her reply was that common sense is not common. Sadly this seems to be true. Has it come so far thatcommon sense is becoming a rare thing? I realize it cant be taken for granted that all peoples possess common sense, but enough people that it's still common. However all one need do is check out some of the lables on cleaning supplies or other potentually toxic substances. Of course companies are required to place warnings on their products, but with all the "advances" of humanity I almost feel they shouldn't be needed. Take drain cleaner for example. it's pretty powerful stuff and not something you'd want to be playing around with. It also comes with a warning not to drink contents. Now if you're going to try to drink drain cleaner, chances are that you probably shouldn't be handling it in the first place. and anyone with uncommon sense should know enough to keep it away from children and pets. Same thing goes for washers and dryers. Of course A person may not be able to hide such a large machine from a child, but if children young enough not to know better are in the house, they should be watched. I think that is one of my biggest problems. not so much that people themselves don't have the uncommon sense to follow the instructions, but they don't have the uncommon sense to keep the stuff away from their children who wouldn't know any better.
This post was inspired by the website for the American Counsel of the Blind who so helpfully noted that Braille paper is used by the blind and visually impaired. I supposed in all fairness this shouldn't be considered uncommon sense since not everyone could know what Braille even is. However in light of the fact that school children are now learning about Braille it seems somewhat silly that that fact needed to be clarified. So here's to uncommon sense, may it one day find its place among the common again.