It's taxing. It means everyone relies on you. It means everyone expects the best from you all the time. All eyes are always on you, and if you do good, no one cares because you're supposed to do good-- and if you screw up, you're criticized and it's a hundred times worse than those around you, because everyone expected more from you. Because there are always people out there scrutinizing your every move, hoping you'll make some mistake they can ruin you for, because they're jealous.