Why was Julian raised far from the imperial court?

Julian was raised in obscurity and far from the imperial court primarily due to the violent political purges that followed the death of Constantine the Great in 337.1

To secure the succession for Constantine’s own sons, the army murdered many other potential imperial aspirants within the family. During this period, Julian’s father was killed, and he was left an orphan at the age of five. Consequently, Julian and his elder half brother, Gallus, were kept in seclusion—first under the care of the bishop of Nicomedia and later at a remote estate in Cappadocia—to remove them from the center of power and potential political threats.1