Registration for consideration in the Auror Department wasn't exactly hard, per se (completing the form was more strenuous in terms of its length). Harry supposed he should feel grateful that the price to just get in the door was this simple – Ron hadn't completed the form before he and Hermione had left, which even though that had left him free to jet off to Australia with his love, it now still left the ginger at great risk of missing the training window for the coming fall season.