I currently have no idea what my gender is, but I like the idea of being referred to as they/them. I haven't gotten the chance to test it out, though, so I'm not 100% sure. Should I tell my parents? They already know I think I'm panromantic asexual, but I don't know how they would react to me questioning my gender. Neither of them know much about lgbt and gender identity, besides male, female, and trans, which I know for sure I'm not. I asked my mom for a binder before and she didn't really approve and when I mentioned cutting my hair really short, my mom seemed a little taken aback and the whole conversation felt awkward. I'm usually really close to my parents, especially my mom, but I feel like this isn't something they would understand. Two of my friends know and one is completely supportive while the other is just like 'don't worry about it so much'. I want to know how it feels to have people use they/them pronouns for me, but I don't know if my parents would help me with that. Also, coming out at school is out of the question, I don't want to do that until I'm sure.
If I were you, I'd tell my parents I was questioning and ask them to use they/them. Don't try to explain all of the LGBT stuff, just tell them how you feel (as long as you're safe).
Your parents are probably going to wonder why you want to be referred to with "they/them", so you'll have to have some kind of answer for that. Otherwise, they may just shrug it off or find it odd. The latter may have them thinking, it's a phase. But if you really want them to address you as such, you need to be prepared with a reason. Something.
If you really want to be referred to as they and explain why you're cutting your hair and get a binder and if you're prepared to explain to them about gender identity and sexuality and stuff, go ahead! If I were you, I'd wait until I've had it all figured out (one reason is because I'm a chicken), but if you want to do it, go for it! Just be prepared for any questions or criticisms.