Why is it like this

I 18f just came out to my family, and was told I needed to act my age not my shoe size by my dad while my mum just sat there like it was the correct thing for him to do and to top it off my dad kicked me out a few hours ago so now im living with my grandparents who have absolutely no idea why i was kicked out or any idea that I'm not the person everyone sees me as, I'm not strong like the guys and apparently not nice enough to be a girl and this is coming from my ftm brother like wtf

Anyway thanks for reading