Not everyone will get totally suited up just to make a trip to blockbuster or anyother close trip. I know that if I'm in my jeans and a t-shirt, and I want to go get a video or something, I'll go as is with some shoes on. I'm not going to go through all the hassle of getting suited up just to make a 5 -10 minute trip, or for that matter, any close trip.
Ok, with that said, when I do go on more "serious" rides, sure i'll break out the leathers, and the whole nine yards, but for me, I don't have to look like Darth Vader everytime I ride my bike. That's just my opinion.