What a great article!
I never have a problem giving up my seat (I'm a 45 yr old male) on any transportation for a more deserving person, I never thought my actions would mean so much but you are right about the infectious behaving - good breads good! :-)
This report also really made me appreciate my wife and mom of our 3yr old daughter as she keep her happy and entertained by going equipped with crayons and paper so that whilst I might be riding ToT or Space Mountain they will both be doing colouring, making paper fans to hand out to the next princess we visit during a Meet & Greet etc. And it stops me feeling that ever-so-guilty about going on rides whilst they wait patiently for me when I see how much fun they have had by keeping themselves occupied (or course the odd Mickey Ears ice-cream helps!)
So yes, well done to those super parents! :-)