5. Did your Tav have any formal or informal employment? If yes, what was their job? If no, how did they make ends meet? How did they feel about it?
Informal. Kit's a thief, and worked as a free agent for whoever needed their skills. They weren't particularly ambitious, as ladder climbing in any particular faction seemed to put a target on your back. They did honest dishonest work, and they survived. They don't think they have the luxury to feel any particular way about it.
9. What was your Tav doing when they were taken by the mind flayers?
They were on a job, and would probably have to tread carefully if they made it home, as I'm sure involved parties would be none to happy about them going AWOL.
24. Has your Tav become particularly close to anyone romantically and/or platonically in their journey? If so, who, and what is the relationship like? If no, why not?
Mock them as you will, but they have a thing for Gale.
Gale was initially a bit of a mystery and some frustration for Kit, who likes to have a good read on people. Once he fesses up and all the pieces fall into place... he continues to be a frustration for them, albeit one that's tied in to an increasing amount of fondness and affection.
The two of them together are not entirely an odd couple, but I think there's enough of a difference between their areas of intelligence and experience to generate a similar sort of friction/completion dynamic. They can baffle and irritate each other, but there's a foundation of respect and loyalty that makes it worthwhile.