A question about setting wide power modifiers

[Kesendeja]

I was wondering about the cost of a disadvantage everyone in a setting had. If everyone has it would they get the points for it?

More precisely, I'm useing Sorcery, and in the setting anyone can learn magic, but all spells require a roll to cast (some need a second roll to aim is sometimes needed, I usually give the discount on these rolls).

I'm leery of double dipping, and universally applied power modifiers pose something of a problem. What would you do? Thanks