Think of Jill Biden as a seeing eye dog. She will be by his side most of the day. I doubt she continues to teach, and if she does, it will be one class, much like Elizabeth Warren at Harvard, who taught one class and got paid $450,000 per year so they could claim they had an American Indian on staff. LOL
Jill will be just outside the camera, and if you watch carefully, he will be looking for her to lead him where he needs to be next. You know, 'Mommy, where do we go now? Is it time for my nappy, because Joey is tired.'