My former co-worker Mark B. has a daughter that understands humanity probably better than most people I’ve encountered in my life. And Lila is 3 1/2 years old.
Lila: “Do all people have all their parts?”
Mark: “Well, most people do, but some don’t. (Discussion about birth defects, amputation, ‘ectomies, etc.) So some people don’t have all of their parts.”
Lila: “But they’re still people, right Daddy?”
Me: “Oh yes, Lila.”
Lila: “They’re still people. That’s the most important part.”
Mark is not a Dad of Disability (that I know of) but he is an honorary one handling his daughters questions like this – and impacting her outlook on life.