Charlaquin
Goblin Queen (She/Her/Hers)
I used to struggle with questions like this a lot. Eventually, I found that the best answer (for me - obviously others will have different experiences) was “don’t worry about it.” Just adjudicate the players’ actions and don’t sweat what the characters “would do” or “wouldn’t do.” Let the players decide that for themselves, and focus on adjudicating those actions as best you can. The game won’t fall apart because the 8-Cha fighter is a smooth talker or the 20-Int Wizard isn’t a genius. And to boot, most players will enjoy the game more. At least that’s been my experience.I admit that I struggle with the eloquence/good argument from a player with a PC that has a low charisma and I'm not always 100% sure how to handle it. On the one hand, I want people to contribute. I want people to be engaged and feel like they can speak up.
But ... people frequently play opposites. The guy that has good, persuasive arguments will play the low charisma tank. The guy that's not all that great at communicating ideas or coming up with persuasive arguments that doesn't necessarily like speaking up is playing the PC with the highest charisma at the table. The high intelligence wizard isn't the sharpest tack in the drawer and so on.
So that's my dilemma. How do I balance PC skills (which I try to rely on) vs player skill or lack therein. If you have a 20 charisma but just called the king an incompetent fool, it makes no sense to not give them disadvantage or increase the DC if a persuasion check is even possible.
In any case, I'm sure there's no one answer for all tables. There's probably not even one answer for my table.