Why would you need to know someone's pronouns just to speak to them. This is what I do not get, these pronouns refer to someone in the 3rd person and do not aff

Why would you need to know someone's pronouns just to speak to them. This is what I do not get, these pronouns refer to someone in the 3rd person and do not affect your conversation with them in anyway. They could easily be referring to you in all sorts of derogatory manner, worse than that of the wrong pronoun, "Dickhead Dave". etc. etc. I myself have a name that's most used with the opposite gender, I am reminded of this atleast on a weekly basis by others in society. Them accidentally referring to me as the wrong gender does not bother me in the slightest, firstly they did not know/it's not out of disrespect and secondly, why should it matter? What is wrong with being a woman if I am a man and vice versa? Unless someone is publishing something about someone, there is very little need to know this upfront. If interactions are frequent, you can tell them if they didn't already know as your bond would be deeper. And if it's an issue you can tell them. It's much like the whole idea of cultural misappropriation, a twisted idea that basically encourages segregation/apartheid. It's as simple as don't be a dickhead about someone's culture (don't demean it) is the common sense, age old and correct solution, not that new thing.