As a note on Somalia: Somalia outside the state-like entities (Somaliland, Puntland, Al-Shaabab caliphate, and FGS / federally controlled somalia) is governed by xeer law.

It's actually not lawless, it just uses a decentralized (polycentric) legal system that is poorly understood by westerners. They've had better outcomes under this system than under democratic government of FGS, which led to all or nothing tribalism influences coming into office.