This is an acknowledgment of the fact that people are living longer and much more diverse lives these days. Especially the readers of this book. Some folks are retiring very early. Others are retiring from higher paid positions into lower paid work that more closely reflects their values and interests. Still others, like I did, are stepping in and out of work as it suits them, their stages fluidly shifting. So age seems not to matter, at least not as much as it once did.
