Replying...
Intro. In this country of only adults, a random lotto is drawn every 30 years that all citizens are in. If your name is picked you have to wear your choice between a silver or gold armband. With the gold armband you can fuck anyone anywhere anytime. With the silver armband anyone [especially people without an armband] can fuck you anywhere, anytime.

Gold/Silver armbands: Free use/user society

@RustLeTen