世間は張り物
Meanings
1
everyone is putting on appearances; society is all show
Proverb meaning that people in society tend to present a polished, false front rather than showing their true selves. Often used to comment on social hypocrisy or the pressure to keep up appearances.
Since society is all about appearances, it's hard to speak one's true feelings.
She always looks perfect, but as they say, everyone is putting on appearances; she might be struggling behind the scenes.