Really enjoyed your trip report. My parents are both huge Disney fans and are well into their 80's. They haven't been to the actual parks in several years, since well before COVID, but enjoy going to the resort and doing all of the non park things. They have both slowed down a lot and I think my Mom would need a scooter, and I just don't know if I could talk her into it. I know she would LOVE Avatar and Rise of the Resistance. I wish I could get her to experience them before it's too late. Don't feel guilty about potentially exposing your Dad to COVID, if there's one thing we've learned from this stupid bug is how unpredictable it is. You can do everything right and still get it and the person sitting next to you, who doesn't do anything to protect themselves, doesn't. Feel glad that you got to experience that trip with him and relish those memories you made.