This is an old revision of the document!
So I have a problem with fantasy races that have extremely short or long lives. Seven year kobolds and thousand year elves kind of thing. Since I can change that I have, here is my breakdown.
While I am lumping them into four categories for convenience, there are expected differences between the groups in each category that I'm not bothering to spell out as well as the usual exceptional individuals. The categories are based on two numbers, adult growth and noteworthy final age. Adult growth means the generally accepted age where your heritage considers you fully grown. For IRL human society that would be 18. It's simplifying the process of growing up, but just like in real life people are going to pick a number to define it regardless of how much it's glossing over how messy reality is (even a made up reality like this). “Noteworthy final age” (venerable in game terms and below) should be considered the upper end of a typical life. Outliers who live beyond will happen, and magic yo, but most people probably won't make it to that age. This is also not indicating any kind of average. These heritages have different societies and a reckless or warlike society will mean fewer people will reach venerable age.
Shorter lived (14/65)
Goblin, Leshy, Sprite, Kobold, Ratfolk, Tengu, Lizardfolk, Grippli
Human standard (18/90)
Halfling, most “beastfolk”, Merfolk, Strix, Hobgoblin, Orc, Kitsune
Extended (25/150)
Planestouched (Aasimar, Ifrit, etc.), Samsaran, Dwarves
Ancient (40*/200)
Elves, Gnomes, Conrasu
Ancient races have the most variation in adult age. Conrasu truely don't mature physically for decades, where Elves are physically full grown closer to 20, but have an extended adolescence that depends on their culture. Gnomes, true to form, are random and could take anywhere from 20-100 years challenging the definition of adult the whole time.
Leshy and Conrasu both have a physical quazi-immortality and these numbers should be considered as a “per-incarnation” benchmark.