My brother is 19 years my senior. He was born abroad and I was born here in England. We had the same father but different mothers. Even though we never lived together growing up - when he came here he was old enough to get his own place. However, we have always been just brother & sister, never half-siblings.He is old enough to be my father but our ages didn't make a difference. It was only after our father passed away he became far more protective which is lovely, but sometimes we are not on the same wavelength as he is of an older era.