This topic gets re-hashed a lot, it seems, and in general my stance is that social skills don't 'work' on other PCs.
But I was just reading some of the early materials for Stonetop, a kickstarted PoA game, and came across this:
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I like that a lot. It leaves the target PC fully in control of the player, but also provides a framework for Cha skills to 'work' on other PCs.
I don't have an elegant way to map that to 5e rules, but thought I'd throw it out there as a middle ground between the two sides of the debate.
EDIT: Try again on the attachment....
View attachment 147505