Exactly Brit, age is considered as an important criteria for organ transplant as there is always a long list of patient waiting for suitable donor.
It makes sense to prioritise young ones for the procedure as they are expected to make proper use of it for a productive life. But it also feels wrong at the same time to deny older ones a chance to live a bit longer.
Anyways, all the best for the one who got it. Wishing him a healthy life onwards.