The characters starting age is dependent upon their base age as a young adult. In most cases their starting age will be base age plus D4. However for elves D20 should be rolled.
Roll on the table below and then apply the appropriate die with a multiplier is the gap between ages is greater than 2x maximum dice roll. Increase the multiplier by 1 until this is met and then roll D(multiplier) -1 and add to the result.
(01-10) Calculate from Low end of Old and roll +D8
(11-25) Calculate from High end of Old and roll – D4
(26-60) Calculate from Low end of Venerable and roll +D6
(61-90) Calculate from High end of Venerable and roll –D10
(91-00) Calculate from High end of Venerable and roll +D20