Sorry for the delay, but that's sweet of you!

And that's a cool idea, maybe she's just... Uncomfortable being away from her family members? That ties in nicely with her canon character development, too.

A bag of winds is a great idea! You could probably get away with no limits on it, too, or at least more lenient ones - once a day/hour, or like, the more she uses them in a period of time, they get weaker, and need to rest.