Any idea how much charisma to pass most check???
You can think of every +1 as +5% chance of success. So if you need to roll a 20 and you have bonuses amounting to 0 then your chance of success is 5%. If you are playing a charisma driven class and you have 18 in charisma then that's +3 raising the chance of success to 20%, proficiency at the start of the game is +2, raises to +3 at level 5, and +4 at level 9 so that's another +10-20% right there. Then there are cantrips like guidance that give you +1d4. So really the more the better.
