I study Taekwondo with my oldest daughter.
Recently, she earned her yellow belt. (Our instructor held a special belt ceremony for her because I had an unavoidable work commitment on the day he originally was to have the ceremony for students earning a new ranking.) He began her belt ceremony by ...thanking me. For taking the time to do it with her, being out there as a parent on the floor/mat with her and not just as a spectator.
It affected me because a) he took the time to accomodate my schedule so I could be there for it, and b) it meant a lot for him to have a parent actually on the floor with their child.
...of course none of this stops this dude from dropping me as we spar/train, but that's another matter.