As long as a talent is able to relate to listeners, then they "fit" the format.No, but it seems absurd to have a host who may be 60 years old on this station. You know very well that Radio and TV have practiced Age Discrimination...
Rick Dees was twice the age of his average listener when he left KIIS, and now Seacrest is well outside the target age of CHR stations he is on.
Plenty of comedians and entertainers, from Bob Hope to Johnny Carson were much older than their audience when they were still at their peak.
You brought up the "aging out of her demo" detail. At nearly every station, if a talent still attracts and holds listeners they are, happily, kept under contract.