I have NC for this
DD is 16. She's had some low level struggles with her emotional wellbeing for a few years. Over that time we've gone from thinking it's shyness, low mood, the perils of adolescence, social media, social anxiety, neurodiversity, etc etc. She's had some therapeutic interventions with some degree of success. Now she's started 6th form she's definitely in a better place, although anxiety over the next steps after school is high. We have told her that we will be fully supportive of a gap year while she works out which direction she wants to take.
Anyway. She's never had any interest in boys, and some of the walls in her room are covered in a selection of 4 or 5 females artists' photos. She pretty much only listens to female artists. A couple of years ago she had a friendship with this girl, and I found out indirectly that they were 'together', as the mother of a common friend of both saw something on social media. I never said anything to my DD about it.
Her dad and I are of the belief that people's sexual preferences are their business and their business only, and that 'coming out' is a peculiar concept in itself. However, I have started to believe that perhaps getting this out in the open at home and letting DD know that we are completely supportive of who she is and that we sort of 'know' and we're fine with it, might alleviate some of her anxiety over who she is. But I also worry that this is none of my business and I'd be stepping over boundaries.
Please don't be too harsh, I genuinely don't know if I am getting this wrong, but I want advice as I want to get it right. Thanks.