Hi,
I I'm a type 1 diabetic and I have a sister who is T1. However, she is 18 and I'm only 11 :crazy: . We were diagnosed 1 year apart ( I was 2, she was 7) and eventhough both of us having diabetes for so long , she still feels sorry for me. The point is your brother will learn to deal with T1 with your help. However, when he's High or Low leave him alone otherwize he will get mad at you for no reason what so ever (I learn from personal experience).