This hits close to home for me. My 17 year old son will be graduating with his class on Monday. He broke his leg (actually, tibia, fibula and all the bones in his foot) the summer of 2014, just before his junior year. He had bacterial infections and multiple surgeries. He faced the possibility of losing his foot albeit not leukemia. He attempted virtual school, but it didn't work out with hospitalizations, PICC line twice, wound vac twice, home health care for iv antibiotics, etc. When this school year was 3/4 finished, they informed him he could take two online classes and graduate with his class. He went to school, worked and took those online classes. He gets to graduate with his class and on time. Granted, he is not a 4.2 gpa student by any means.
I feel like participating with your class in "walking" is a rite of passage...symbolizing the true beginning of adulthood. I quit school in 11th grade and it has never bothered me that I didn't graduate with my friends. However, I went back to my high school to get football tickets as an adult and they have senior pictures for every graduating class. I saw all of my young classmates and did feel a twinge of sadness that I didn't get to experience that thrill....the thrill of being done with that part of my life with people I had shared that experience with for so many years. I guess it means more to some than others.
There are always so many stories and probably deserving ones, but I agree they can't do for one and not all. Maybe they should have been more accommodating in ways to help him make up for the classes he was lacking so he could officially graduate. It sounds from one of the links upthread, they offered other ways to involve him that were not accepted.