Presedential Election

I don't mind people having their views on politics and everything, but, to put it bluntly, WHY DO THEY CARE SO MUCH? The world isn't going to end if the wrong president is elected. Both candidates are qualified for the job, or they wouldn't get so much support, even if it's from people one doesn't like. I just don't understand why people have to get into three hour long debates about whether or not a candidate will make everybody's life miserable if he gets elected, or anything like that.