Stoneskin for Scholars, is it necessary?

[Unmotivated]

Exactly, Protect is better off to be casted by Whitemage, same goes for Stoneskin, so what's the point of having it?

Anyone can enlighten me?

It's a preventative buff that stacks with SCH's innate shields, there's no reason not to have and use it whenever you can. A White Mage's Stoneskin might be more effective, but they also have a much more strict MP pool and can't afford to be throwing them out that often.

And since you're not exactly hurting for room on your cross-class bar, you might as well get it. It's not necessary like Swiftcast is necessary, but don't look for an excuse to avoid playing at your full potential. Just pick up CNJ and heal some dungeons on the side, no one's going to kick you for not having it but you should want it, eventually. It's a very fun skill for a SCH to have.