I have a 4 month old daughter and I feel like we've given her the wrong name. I'm thinking of changing it, however, along with my concerns about telling other people and the embarrassment of that, I'm mainly worried about whether my eldest would adapt to the new name. He's 2 and a half and I worry he'd constantly be calling her by her old name and it would be really confusing for him. Has anyone been through this with an older sibling?