With regard to anyone doing this to a PC, I agree with you. With regard to an NPC, however, if trying to get an NPC to help you with some sort of requested aid is not a valid use of a Charisma check, and if success on such a check does not yield the desired aid, then what is a Charisma check for?
the charisma check is to see how well you do at what you are doing...not how well you control my NPC... if you are asking for aid against my orc that only repects power, and you do so by crying then you have convinced him you are weak... he now pitties you but is no more likely to help you then before.
In that case I can choose to not be intimidated, which makes me wonder what the roll was for.
I don't understand what you mean by choose... being intimifated is an involuntary reaction, not a choice... you choose how your PC reacts to being intimidated...
It sounds like that was a role-playing choice you made for your character, not dependent on any die rolls.
and you base that on what?
Right, you're free, as DM, to determine that there is no chance to successfully influence the NPC and skip the roll altogether. Also, how you choose to role-play the NPC's response might preclude success from the outset.
the PC has the same freedom as the DM "I am going to relent" or "Roll and we see" or "I have a ability on my paper that makes me immune" but not "I just say no because I can just say no"
DM impartiality in no way implies that: 1. the NPC is generic and without detail, or 2. the DM is not role-playing the NPC and is only obeying the results of die rolls to determine the NPC's reactions. Die rolls are not necessary at all for a DM to be impartial. An impartial DM is one who runs the game in such a way so as not to take sides either for or against the PCs, but is rather serving fairly as a judge or referee ought to do. The players on the other hand ought to be taking the side of their PCs.
so what do you do when someone is an NPC sometimes and a PC other times? "Well today he is an NPC so go on and roll" and tomorrow "Sorry it's a PC now completely different rules"
I'm not sure how you're connecting role-assumption to controlling the whole world. I'm only suggesting that players control and advocate for their PCs.
maybe I just don't understand what you are saying then.
Acting out the result dictated by a die roll is not role-playing.
yes it is... roleplaying a critical hit, roleplaying a missed ref save, roll playing a missed save vs a charm... are all role-playing... so to is "Hey I got intimidated now how does the character react..."
Role-playing is inhabiting your character and making your character's decisions yourself.
yes based on the game... you make the choice in how to react... now react to your character being intimidated...this just happened now what?
The dice can't do it for you.
the dice can't be 100% beginning, middle, end all be all. No of course not. The dice are randomizers that act as impartial result generators to inform our role-playing