I sometimes wonder if heterosexual predominance may not be largely a matter of semantics.
When it comes to pronouns, it's way harder to talk about same-sex relations.
Then he climbed up on his shoulders, and he....
Which he is he?
If, back when, I'd had the shaping of English myself, there would today be multiple male (and female) pronouns, the better with which to avoid such ambiguity.
One wonders: just how would that work?
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Don't use pronouns in any context unless the reference is clear. Use names when there are several possible references for a prono