The number eighteen on a white circle with a red stroke through. An indication that people below eighteen are not allowed to enter. Often send to teens to remind them that they are underaged and not to do anything stupid while out.
|URL escape code||%F0%9F%94%9E|
|Bytes (UTF-8)||F0 9F 94 9E|
|C, C++, Python||\U0001f51e|