Your kids are lucky.
In a strange way, I am home schooling my dad. He is 87 and I am a caregiver for him and my mom (85 going on 39). Each day they still teach me...and I get to learn by giving.
See my tag...it says it all.
In the sprirt of disclosure, my Freeper name isn't exactly accurate anymore as I'm no longer homeschooling exclusively. I do have to say though, that the days that I was were some of the best days of my life. My hat is tipped to you too, for providing the care that you are for your dad. It's encouraging to me to see that there still are people who do the right thing.