“They” also refers to plurality. In the case of an individual having either both or neither and you aren’t trying to be disrespectful with “it” then it’s not confusing at all because it’s accurate.
That’s not relevant to our conversation here - we’re not talking about how language should be used (which linguistics, as an empirical/rationalist science, has nothing to say about), we’re talking about how it is used.
“They” also refers to plurality. In the case of an individual having either both or neither and you aren’t trying to be disrespectful with “it” then it’s not confusing at all because it’s accurate.
That’s not relevant to our conversation here - we’re not talking about how language should be used (which linguistics, as an empirical/rationalist science, has nothing to say about), we’re talking about how it is used.