4e and Life Expectancy

Candace was casually thumbing through the Fourth Edition Players Handbook the other day at my request when she spotted something a little odd.

I needed her to give the book a glance because she's a set of relatively fresh eyes as far as Role Playing and Dungeons & Dragons are concerned. My reading of Fourth Edition materials tend to leave me either crumpled in a corner whimpering or foaming at the mouth and gnashing my teeth. Her perspective would have to be closest I could get to an unbiased view until I actually have a chance to play/run it.

She noticed that oddly, the life expectancies for virtually all of the pre-existing races had been reduced rather drastically. This wasn't too unusual really, as Fourth Edition seems to be more geared for "Heroic" play that centers on characters retiring at 30th level as challenging encounters dry up (granted, this could be rectified with future Paragon/Epic Tier Splats), so living to a ripe-old age is pretty out of the question.

However she did notice that Tieflings did not have a life-expectancy listed. This will probably be clarified and Errata'd into oblivion but it did get my gears turning after a fashion. Is it being tacitly implied that Tieflings are immortal barring hazard?

Odd.