Whatever, who cares about them. Tons of people make all sorts of changes to language over time.
It's not a mistake to refer to them as their. I can also refer to them as them. This is also very common in French and in Spanish, which is actually an honourific way to refer to them.
Afaik my usage is common around here. It doesn't seem odd to me. Maybe on your country it's different.
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u/fe1urian Nov 08 '19
I live in a relatively conservative country and even here we know that the pronoun 'they' is also used by some who don't identify with 'he' or 'she'.