I would like to learn more about my ancestors so I can figure out why my brothers are so weird!
Actually, it's good to know some family history to help anticipate health issues that might come along. I have a microcephalic brother and sister which is a genetic disorder. Knowing whether there is a history of an inherited disease or birth defect could make a huge difference.
. . .but I still would like to know why my brothers are so weird!!
Don't tell them I said that, they can be really vindictive. 