Oldest not accepting sibling?

Leah

I have an 11 year old and she refuses to even hold or go near her new baby brother... mainly she’s still upset that she didn’t get a sister. She doesn’t even want to go near him for a photo. But she will tell her teacher and friends how cute he is and that she’s happy to finally be a big sister 🤷🏼‍♀️ anyone else experience this?