the thing is that magic systems would usually have its base on lore and worldbuilding

I want to keep this supposed to be "Free RP" as simple as it might seem; there's already a complex system called "human psychology" underlying any dialogues and character actions, also "classical physics" to make any interactions with the environment reasonable enough

your characters bleed if they're stabbed, they fall down when they're pushed on a cliff, they might want to get angry if they're insulted and happy when they're praised

let's say that any characters charms mine with their magic, shouldn't my character have a chance to avoid it? How? Dice throwing? Familiarity with the lore?