"I think, that's obvious even for kids."

I would hope that you are correct in that statement, but I feel all too often what we see on the screen, either the big one or the little ones, exerts a strong influence on what we expect. I have handled victims in mountain rescue who have expressed some dismay that their ordeal wasn't going to end really soon, with time for station breaks and commercials. Of course those weren't always the sharpest knives in the drawer.