IDEA FOR EAGAMES:
We should have an option to either Retire the Sim or Make Sim A Lifelong Player Sim. Cause alot of us players may have a favorite sim that we dont want to retire at all.
As a long lifelong sim, it still will be playable while it goes through the phase of growing old. Maybe have like an amulet for the soon to be retire sim to wish to have a longer life span or retire and give an heirloom out.