In society today, we all realize how nosey and curious humans are. Yes, people will say it is within our nature, but as human beings we have the power to technically defy nature and go against our primal instincts. Although we have become more evolved as humans, a lot of us are still very rude in nature.
Now that trans people have been in the spotlight for the last couple of years due to viral posts, and mainstream media, people have become more aware. While they are more aware, which is a good thing, because we have been existing just as long as they have. It is very common though to be really rude when talking to someone who is trans. Most people don't apply basic human decency towards trans people. They think that we are so "different" that the concept of being decent is being thrown out the window.
For some reason people think it is so hard to use a different name on someone when they decide to change it, or that it is hard to use a different pronoun than the ones they've used before. See if those things were so "hard" as they say, then why do people call others their nicknames that has no correlation to their actual name, or why can people switch the pronouns they use on animals, and drag queens/kings but not on actual trans people? Is it so hard to be a decent human being and respect what someone wants to be called, whether it be a different name than what you know or the pronoun that they chose to live by?
Also it is not anyone's business to know someone's "birth name". I hate the term "actual name", because a name is a name, but it is also importatn to ones identity. Even if someone changes their name, it is essentiallly just helping them feel more comforatable with who they are. No one has the right to tell other people someone else's previous name. Cisgender people change names all the time whether it be because of family issues, marriage, previous arrests or offenses, and no one bats an eye, but when a trans person does it to feel more authentic to themselves, then all hell breaks loose. It doesn't make sense, people say its not transphobia but it is. If you aren't doing your part of being a decent human being by calling someone by the name they want to be known by, or intentionally calling them the wrong pronoun but you can switch pronouns when you watch RuPaul's drag race then you are literallly showing us transphobia.
Just be decent, it isn't reallly that hard. If someone tells you a name that they want to be called by, and it is different than what you already have already known, don't be a jerk and call them by a name they aren't comfortable with because you are lazy too actually make an effort to call them by the right name. If someone corrects you on their pronouns, don't just dismiss it, actually listen and don't make the same mistake again next time.
p.s. if you don't know someone's gender identity you can use gender-neutral pronouns (they/them/their) until you actually figure it out in a non-evasive way.