Making friends is arguably one of the best things about going to Hogwarts. Without friends, life can be pretty sad. Having someone to side with, to share with, and to study with – someone who has your back, and who needs you to cover his/hers – is huge. Yet for Harry Potter and some of the other characters who've been set apart by their magical abilities, making real friends is only possible at wizarding school. Wizard friends are lifesavers, literally: who else can you collaborate with to defeat three-headed dogs or evil overlords? By making friends, the characters get to work together, learn from each other, and accomplish more than they ever would have on their own.