They suck then. Tell them their skills are inferior.

That sucks. I love when my players rp something terrible but roll great.

player: "I seduce the kobold bartender by telling her I like the thickness of her musk?

:: 20+8 in cha bonuses ::

Dm: "She drops the glass mug she was washing, staring into your eyes with a startled expression on her face. She doesn't react to the loud shattering of the glass as it hits the floor, she only leans in close and says breathing into your ear as a sharp claw caresses your cheek right under your eye. 'No ones ever talked to me like that before. follow me to my bedroom'

dm: roll a perception check

:: 2 , no bonuses ::

You believe every word she says and follow her up the stairs.

Then just let them imagine the worst and decide what happens next session

Oof. That's definitely not how it should go.

But GMing isn't something the rulebook is all that good at teaching people how to do, so stuff like this is quite common :(

"Incredibly, despite the cringe, it works!" They can still have a dig and throw a little shade, but the game is as the game does.

When playing checkers and you say "King me" they dont refuse to do it because you didnt do a flourish.

That should only be required if what you're trying to do would have a higher DC than you could possibly roll, but the DM humors you by allowing you to try convincing them anyway. Or that has been pre-agreed in session zero because the group is all theater/improv nerds or something.