I have a 24 year old brother too, when we were little he used to really take care of me, it's kind of a long story, but when my mum was having an affair, she'd go out most of the night because that's when dad worked and leave us alone at home, he was 4, I was 1, and because she'd forget to feed us before she left, my brother would get me out my cot and take me downstairs and make us sugar sandwiches to eat, we're still really close now, and I'll never forget that he did so much for me when we were little