...wow, Yayul is THAT kind of person?
Or well, that kind of kid. If he could just tell her that he would still choose to defend her, regardless of whether she could do so herself or not, because she's that important to him, she MIGHT get a better idea.
But making his master refuse to let her get stronger so he can defend her, AND training so he doesn't make her sad when trying to defend her, really feels a bit much, even if being a kid kinda makes it less egregious than if he was a fully grown adult.