What is the wrong way to use chopsticks?
Not long ago, there were several popular videos on the internet where the upper part of the chopsticks were broken in order to use them as a coaster. This turned out to be a fake. You can’t do this with regular chopsticks. Actually, the connection at the top of the chopsticks is just supposed to be a sign that nobody has used them before you. And the chopstick rest is called hashioki.
The airplane seat’s ears don’t work as intended.
Beer Bottles designed to be held in one hand, and drunk out of directly, have their shape constrained by human anatomy. The lower part of the bottle needs to have a diameter that can be grasped securely. The bottle mouth needs to fit into the human mouth, and have a shape that won't produce leakage when you drink from it.
When was the last time anyone got a French fry container from McDonald's like that?
They stopped using those in the late 90's.