Mom at 15 years living in the street

.. is the marriage of children and adolescents below the age of 18.
The "practice of marrying girls at a young age is common in South Asia".
There are specific parts of South Asia where marriages before puberty are not unusual. However, the Centre also notes that marriage shortly after puberty is common among those living traditional lifestyles in the Middle East, North Africa and other parts of Asia. Marriages of female adolescents between sixteen and eighteen are common in parts of Latin America and Eastern Europe.