What does 1 Chronicles 26:10 mean?

Hosah, from the Merari clan, had sons too. Shimri was the leader, even though he wasn’t the oldest—his dad made him the head anyway. 1 Chronicles 26:10 - Modern Text Bible

(Hosah’s family is mentioned among the gatekeepers. Shimri, though not the firstborn, was chosen as the main leader, showing that leadership wasn’t always about birth order.)