At the moment when a Catholic priest retires, the church only has responsibility towards him.
But what if the priest was married, has a wife and family?
Where would they go if they had to vacate their parochial home? What would they live on? What would happen to clerical widows or, even more distressingly, orphaned children?
Secondly, how could the Catholic Church maintain its stance on clerical celibacy?
It cannot argue logically that it is permissible for married Anglican clergy to convert to full communion with the Catholic Church and yet deny Catholic clergy the right to marriage.
Bolding mine. I don't bring all these questions up in my posts because I'm opposed to this move by the Pope. On the contrary, I am all for it. The Anglican Communion has been a mess for years now and it's about time Rome stepped in in an authoritative way, especially with the TAC petitioning for entrance. However, these are all questions that are going to need to be answered in the Apostolic Constitution or any companion documents before people start coming over or else Rome is going to have a real mess on its hands as the usual circumstances of human life rear their ugly heads.
Kudos to Kendall Harmon for bringing together so many good links on all of this.