Well, mostly its because so that you can learn how to sell your concept or 'Why my design is way better than the other guy.' something like that anyway.
I seen lots of very talented guys but the subject that they are assigned to create is often a miss.
These guys are more likely never to be art directors, just the guys that do the 'grunt' work.
Let me give you an example of what some old classmates of mine did.
The class assignment was to make an ad usually seen in magazines, or at least a convincing one.
This group decided to make a beer ad.
And it did look like one of the prettist ads in our class except for a few things.
It was put in a teen mag. (Underage drinking...)
They used a certain popular Korean drama in the ad that the main audience would range from teen girls, young ladies to housewives...(Wrong sort of audience)
And they couldn't explain why in the world that they need to use this 'combination'...
And its not just advertisements that need solid ideas, movies, tv shows, comics/manga, websites...Yes even this website we are currently foruming on have good (can I say great?) solid ideas (EVERYTHING, BY EVERYONE) to bring people in.
Think its just pretty pictures?
If you are so introverted that you know you're in trouble,
Then . That's what I did. Read some books and take public speaking classes. DO SOMETHING!
Art classes have been around for a few hundreds of years, so they do know what the hell they are doing.
Of course, you don't have to listen to what I said and you can continue to whine only to find bitter experiences to chew and burn you out.
These is all I can muster up...
What I said is a mix of my experiences and other people.
Till next time or none at all.