[Dracain]

While that is true, then does that mean that every elf has a good personality?  An elf has minimum 3 charisma, which means that (by your count) that the most uncouth elf ever still has at least the average level of personality of normal human beings.  If you want a pretty character with little personality if you be higher CHA and little (or no) social skills, maybe even taking the uncouth negative quality. 

[UmaroVI]

Yes, it does indeed mean that elves have better personalities than humans on average.

Charisma is a nebulous attribute. More than just looks, Charisma rep-resents a character’s personal aura, self-image, ego, willingness to find
out what people want and give it to them, and ability to recognize
what she can and can’t get out of people. A whiny demeanor, a me-first
attitude, or an inability to read body language or subtle hints are just
a few traits that can give a character low Charisma [note how none of these are being ugly]. A character with
high Charisma might simply enjoy entertaining others, may excel at
making friends and/or manipulating people, or may be all flash and fun
with whomever it is today [again, note how none of these are being pretty]. A high-Charisma character might deliver
jokes at the right moment, have a sexy way of carrying herself, or com-mand respect because her timing is always impeccable. [Again, no mention of being pretty. Maybe elves all walk sexy.]

Also, note how a bunch of the things that Charisma does cannot possibly be explained as being super pretty, whereas none of them need to be explained as being super pretty. For example, Judge Intentions is Charisma-based. So is the check to resist Compulsions. Neither of those make even the tiniest bit of sense as coming from looks.

[Glyph]

Higher Charisma as a metagenetic social aptitude makes more sense than looks (in a setting where anyone with enough money can look like a supermodel), especially since the ork street samurai archetype from first edition, with a Charisma of 1, was described as having "charming good looks" and a "cultured accent".  It really isn't any different than the lower mental attribute maximums for orks and trolls, or the higher Willpower for dwarves.

[Dracain]

I am not saying charisma is only looks, I am just saying that someone who is supposed to look like a super model would probably have more than 1 charisma, because looks are one aspect of it.  I understand that personality is the majority of it, but looks are still a element.  if it was just personality, then it wouldn't just be elves have better personalities on average, it would mean the most foul, uncouth and rude elf (3 CHA) would be the same as the average human being (3 CHA). 

it would make sense if the guy had low charisma, of course, but a 1 means that they are literally repulsive to all around them, and people are instantly repulsed.  Tons of people look good but have a bad personality, but they still have that initial attraction going for them.  Keep in mind it isn't just "looking good" (if it was I wouldn't say anything), it is super model levels of good looks, This guy is supposed to be so good looking that people would consider paying him money to take pictures of him.  I would think that would at least require a 2 in CHA. 

(I haven't read first edition so I can't really dispute that street sam, but I am going with what I have now)

[Glyph]

If you feel that way, you might want to consider using the house rule from Augmentation that lets cosmetic biomods increase the Charisma score (page 23).