Why did the bedouin people may have developed a strong clan relationship

Bedouin were an Arab camel nomadic people. Since they were nomadic, it meant that they would be scattered away from each other.  several families however related to one founder often founded a clan.  The ties were important for mutual benefits such as security, which was paramount, as the people lived in increasingly hostile environment. In addition,clan systems provided a base for social support for the elderly as the younger generation participated in trade.