America Magazine quoting Pope Francis on the “institution” of the emeritus pope:
I think that the emeritus pope is already an institution because our life gets longer and at a certain age there isn’t the capacity to govern well because the body gets tired, and maybe one’s health is good but there isn’t the capacity to carry forward all the problems of a government like that of the church. I think that Pope Benedict made this gesture of emeritus popes. May, as I said before, some theologian may say this is not right, but I think this way. The centuries will tell us if this so or not. Let’s see.