In the Monthly Girls' Nozaki Kun (both in the episode 1 of the anime and chapter 1 of the manga), Nozaki tells Sakura that the bicycle scene cannot have tandem riding because it is against the vehicle law and he can't display that in his manga.
But the same tandem riding is shown in several current works (like episode 12 of "Your Lie in April" - Kaworu rides Kousei's bike standing up).
So, does the statement by Nozaki-kun have any real world parallel? Are manga artists really pressured by the editors not to put dangerous or illegal scenes in their works?
Is there any law in place forbidding this display of "illegal" activities?
Keepe in mind that Nozaki's manga is aimed at girls 15+ in his fictional world.