Here's the problem with Charisma. Bereft of class abilities:
Strength: Melee hit, melee damage, many forms of ranged damage, carrying weights
Dexterity: Reflex saves, AC, ranged hit, some melee feat requirements
Constitution: HP, fortitude saves
Intelligence: Skill points, languages, multiple melee feat requirements
Wisdom: Will save
Charisma:
Well save and fort save are both literally needed to avoid instant death, which helps Wisdom and makes Constitution even more hilariously good.
See something missing from that list? Yeah. That's why people dump Charisma.
If you want charisma to be useful what you need to do is not punish those who dump it, because why the hell wouldn't they dump it? No, you need to give them a reason to take it. Make a positive charisma do something.
Also Charisma != appearance. There is no appearance stat. There should never be an appearance stat.
Strength: Melee hit, melee damage, many forms of ranged damage, carrying weights
Dexterity: Reflex saves, AC, ranged hit, some melee feat requirements
Constitution: HP, fortitude saves
Intelligence: Skill points, languages, multiple melee feat requirements
Wisdom: Will save
Charisma:
Well save and fort save are both literally needed to avoid instant death, which helps Wisdom and makes Constitution even more hilariously good.
See something missing from that list? Yeah. That's why people dump Charisma.
If you want charisma to be useful what you need to do is not punish those who dump it, because why the hell wouldn't they dump it? No, you need to give them a reason to take it. Make a positive charisma do something.
Also Charisma != appearance. There is no appearance stat. There should never be an appearance stat.