That is a bit daft. There are things I can see as being useful benefits of high charisma such as:
The ability to talk an individual into giving you a bigger reward
Talking down the price of certain things (these 2 were more relevant in BGI)
Cheaper prices at stores
NPCs more likely to join/stay with you
NPCs less likely to suffer morale failure
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Time is an illusion. Lunchtime doubly so.
Epona of The Laughing Hyenas and The Ladies Guild.