Mage Ash said:
I think that if a person (no matter what race) was born, grew up and lived on a planet housing a different race then he should be allowed to take cetain cultural racial feats.
This will depend a lot on the nature of the racial feat. I could see any alien raised by Narn taking up a blood oath for the family that raised him/her, but no alien is going to gain the benefits of a noble house no matter how long they lived on Centauri. (One notable exception might be a human that the family was passing off as Centauri due to their very similar outward appearance).
As for a Technomage, a few cultural feats might survive, but very few. Any tied to the actions of others on the Homeworld have little chance, but a Centauri or Human Technomage might well emulate some aspects of their races behavior even if raised away from that culture. A good example (from, gack!! Star Trek) would be Worf. He was raised from childhood by humans, but he in fact was more Klingon than most of his own people. (He was the idealized Klingon rather than the reality of Klingon BECAUSE of his separation from his people).