Board Thread:Character Discussion/@comment-5118208-20141108143108/@comment-4839682-20150318233518

It could also be that emma gets at least some of her power from being the "savior" of the darkest curse ever made, that the very fact that Rumple put her parents' love into the recipe gives her at least some of her power.

Outside of that, I don't think True Love is a tangible thing that can be passed on biologically. If it was, there'd be a number of very powerful children XD

Still, if Henry wanted to learn magic, I'm sure he could. Regina didn't seem to him much ability on her own before she started being taught.