Interconnected

Sociolinguistic counterfactual: English has a third-person plural pronoun that means "we, but not singular-you," and a possessive pronoun which means "ours but not singular-yours" (for potential use in the currently ambiguous phrase 'come, sit round our fire'). a. Does this influence English-speaking societies to have social groups that are more exclusionary or less exclusionary, or have no effect? b. What factors in the past would cause English to have these words, and related deformed words, today?