Only online, in the sense of having it in your profile if you want it specified. Literally none of my trans friends do it IRL. Most of them wouldn’t be comfortable with it.
Edit: They may have done it once specifically to come out as having a different pronoun than people already in their lives were used to using for them, but not like, encountering someone new.
Edit 2: To delve a bit further, this is an extremely context dependent conversational norm. Like, it’s not based on the person you’re talking to, it’s based on the group you’re in, and if one person is doing it, generally a lot of people are. If you don’t have an LGBT organization in the area to visit a meetup of, and you aren’t in an online space with no obvious gender markers that requires the specification if you want it specified at all, I don’t expect it to come up (unless you are meeting someone with a non-obvious pronoun who really wants you, specifically, to use it, rather than just correcting if you got the wrong impression—this I would count as ‘unable to hide’ if they do so with most people and are trans).
Only online, in the sense of having it in your profile if you want it specified. Literally none of my trans friends do it IRL. Most of them wouldn’t be comfortable with it.
Edit: They may have done it once specifically to come out as having a different pronoun than people already in their lives were used to using for them, but not like, encountering someone new.
Edit 2: To delve a bit further, this is an extremely context dependent conversational norm. Like, it’s not based on the person you’re talking to, it’s based on the group you’re in, and if one person is doing it, generally a lot of people are. If you don’t have an LGBT organization in the area to visit a meetup of, and you aren’t in an online space with no obvious gender markers that requires the specification if you want it specified at all, I don’t expect it to come up (unless you are meeting someone with a non-obvious pronoun who really wants you, specifically, to use it, rather than just correcting if you got the wrong impression—this I would count as ‘unable to hide’ if they do so with most people and are trans).