Ignorance is bliss…?
Let's look at that for a minute.
I suppose the argument goes that what you don't know can't hurt you. Well, that is just not true. A plane crash can still kill you if you are on it, weather or not you know that a plane can crash.
The older we get as humanity, the more we learn. I can see that children may be considered ignorant because they are not yet aware that there are people out there that will hurt them, whole countries that will fight major wars over unproven ideas, their days are made up of playing, eating, sleeping, school, and they KNOW that their parents will always be there for them… as they should be.
As we get older, we are supposed to gain knowledge. Some people believe that all the knowledge that they need can come from a textbook, others believe that all the smarts you need in life are "street smarts". I like to think that without practical use of any knowledge obtained, it may as well be considered useless. Think of these people that are in school for years on end, come out thinking they know all the answers in that specific field, only to learn a new and necessary lesson…. They don't know everything!