I'm just gonna go through these w/o the quotes cuz I keep creating new lines with it (I'm out of practice!)
1. Height: This would be kinda neat. Honestly though if there's debuffs to either side, I would go for mid height making this trait kinda pointless. Would it give extra points to spend on tall/short? Would they be the same? What would be considered a high shelf? There's many shelves with different tiers, how would those be counted?
2. Age: This seems to draw on old worn out negative stereotypes. You're implying 18 year olds learn faster than 60 year olds. I can tell you from experience it took years for me to learn how to do things (this is not a joke, though it does sound funny). 18 year old me was much slower at learning than 30 year old me. 30 year old me has the tools needed to learn quickly and efficiently. Not only that but you don't see many 18 year olds running around with Ph.D.s in biology. On the physical side, I have to say while I may look older than 18 year old me, I still run just as fast (slow) and still lift as much weight. I can't say what this'll be like in 30 years but I think age is too variable and subjective of a "trait" to added. We have "slow learner" and "feeble" traits already if one wants to RP as an old slow learning feeble person. Aesthetically I would love to see these options though.
3. Sex: Almost everything in this section would be a horrible addition to the game. Yes, men tend to be stronger then women on average. Also women have a higher pain tolerance and do tend to live longer. However... Pain doesn't do much at all in this game, no one lives long AT ALL EVER, so why would anyone pick a female character if men have an actual buff to strength? I think this is gender locking characters and I do detest when games gender lock roles.
4. Face: This would be kinda neat to see. I don't want to spend an hour customizing my character though.
5(?). Nationality: Um. This game is set in 90's Kentucky. This group of people is more or less homogeneous. I'm not saying that it wouldn't be cool to see, but I think this would be great as a mod at best.