Recently I was in need of some blank paper for an art project. I decided to walk down to the nearest convenience store as they seem to have everything. I found they had an impressive selection of stationary, but what they didn't have was paper without any lines on it. They had all kinds of lined paper for various casual and official purposes, but not a single piece of free-form blank paper.
I went to another, slightly farther convenience store and found the same thing. I'm sure I'll be able to find blank paper somewhere, but I thought this was humorously symbolic of Japanese culture as a whole. Why would you need to draw outside the lines?