epicene "they" is probably the safest pronoun in english. i use it all the time in english, when i know someone to not be binary, when i'm talking about a hypothetical person, when i don't want to disclose someone's gender etc.
it's fairly easy to get used to as well, can't be much weirder than it was for people to start using "you" all the time instead of "thou".
i use other 3rd gender pronouns when people request it. all i need to do to get used to it, is to use them. pretty simple really.
i avoid using any equivalent of "it" in germanic languages at least. in saami, there are cases where it's more natural to use "it" than "ze" about a person (we don't have gendered pronouns), kind of opposite of norwegian dialects where it is common to call thing "he" or "she" instead of it.
pronouns are fun. any words are fun. and the easiest way to make something new and strange natural, is to use it. i know a girl who uses gender neutral "hen" perfectly naturally in swedish. made me happy to see saami a pronoun translated to an equally ungendered pronoun in swedish.