AIO Parents telling me i can't go to a wedding which isn't even their wedding
Basically, in about 2 weeks my brother has a wedding. I (17F) have bought my own shirt with my own money i earned from work, my mum personally doesn't like it though i have made sure with my brother that it is wedding appropriate. she has been saying "you can't wear that to the wedding" or "that's not wedding appropriate" even though i have asked the person getting married, and he has confirmed he doesn't mind if i wear it. i have made it clear to my parents that i will not be wearing a dress, i don't feel comfortable in a dress. My mum has now started saying "you're wearing a dress" or "you have to wear a dress. trousers aren't wedding appropriate". I have refused to wear a dress, so now she is saying "you're not coming" and "you're not allowed to go to the wedding then". i have told her "it's not your wedding, you don't get to uninvite people" and shes still saying "well i'm saying you're not coming". To get my brother's opinion on this, I've said "mum and dad are saying i'm not allowed to come to the wedding because i'm not wearing what they want me to wear. they are saying i can't go unless i wear a dress and i don't want to wear a dress." I've been told by my brother "you are 17 years old, you wear whatever you want to wear, be yourself. you don't have to wear a dress, i can't believe they're using our wedding against you like this. wear whatever you want, we want you there and that's coming from the groom".