I listened to a short account on how to encourage students to aim high. Funnily enough it involved meeting your inlaws and the benefits of dressing up smart.
When you go to meet the “in-laws”. So you turn up in a suit, shirt and tie and you find out its more of a casual family event. So use lose the jacket, tie and roll you sleeves up. Big deal. Lets look at it the other way around. You turn up in slacks and t-shirt only to find out that your on your way to the smartest restaurant in town! What now? Its much easier to dress down, than it is to appear dressed up.