Why did hag rid have to give his dragon away?

Hagrid had to give away his dragon, Norbert, because it was illegal to own a dragon in the wizarding world. After being discovered by the Ministry of Magic, he faced the risk of severe consequences. To ensure Norbert's safety and well-being, Hagrid arranged for him to be sent to a safe location in Romania, where he could live freely among other dragons. Ultimately, it was a difficult but necessary decision for Hagrid as a responsible caregiver.