I mean, I don't really care about having lore discussions, but the reality is that we have very little concrete lore or evidence, so it seems sort of irrelevant to debate it.
The bottom line is, there isn't anything that says we can't have eyebrows. It's not genetic, so cultural or not, our WoL may or may not adhere to it.
My feelings on the matter are that Highlanders were originally designed without eyebrows and SE simply doesn't care enough to change it. Highlanders are overall a small portion of the population compared to other races and aren't even on SE's radar for feedback or changes.
I don't mean to rant about it, but with the graphics update it's been a little frustrating to see feedback addressed on popular races when Highlanders don't even have the option for a basic common facial feature.
