It often leaks information the speaker didn’t intend to share. e.g., “I met a friend. She was late.”
Did the speaker mean or care to share to gender of this friend? Is it relevant? I don’t think so.
And I find it especially interesting when people argue for gender-neutral plurals, but then happily use gendered noun. It sort of feels like “everyone must stay in their lane” type of expectation.
Even the patriarchy argument is weird. The patriarchy - along with religion - wanted this gender line and specification in every context. Wanna stick it to patriarchy? Nix the gender from all languages!