4. You're Always Mistaken For The Younger Sibling
Your brother is four years younger than you, and yet he's always given first choice on everything - because apparently it's only fair that 'the older sibling gets what they want'. You want to scream "I'M THE ELDEST. I DESERVE ALL THE TREATS. I AM NOT YOUNGER THAN MY BROTHER AND HE IS A STEREOTYPICAL YOUNGER CHILD AND HE IS A BRAT!" Then you realise that no one is going to believe you if you go off into a young person tantrum. So you keep schtum and hope that one day some wrinkles will appear to prove to the world just how old you really are.