قانون جدید کالیفرنیا ازدواج کودکان را ممنوع می کند. چشم انداز جهانی در مورد این عمل چیست؟

A new California law bans child marriage. What's the global outlook on the practice?

The governor of California has signed into law a ban on child marriage. What is the status of other efforts to ban the practice? And do bans prove effective?