Two parents with a daughter and a son. It reads as the classic family of four and often stands for family in general.
People use it for family reunions, holiday plans, and full-house moments, and parents use it in bios to show their crew. It is a common pick for naming a family group chat.
Facts
Family: man, woman, girl, boy ๐จโ๐ฉโ๐งโ๐ฆ is an emoji in the people and body category, under family. It became part of the emoji standard in Emoji 2.0, released in 2015. It is a sequence that joins ๐จ man, ๐ฉ woman, ๐ง girl, and ๐ฆ boy. Devices that do not know the sequence show those emoji side by side. On GitHub, Slack and other apps you can type it as :family_man_woman_girl_boy:. People also look for it with words like โboyโ, โchildโ, โfamilyโ, or โgirlโ.