What are the "certain priviledges" of the Ewells?

Burris Ewell, comes from a family so poor that Atticus says they "live like animals." Their children come to school on the first day of the year and then are never seen again. The children inform their teacher of this, explaining that "He's one of the Ewells."

Scout tells Atticus that she wants to be like Burris Ewell and not have to go to school at all. As Atticus explains, the town authorities bend the law for the Ewells because they'll never change their ways - for instance, Mr. Ewell can hunt out of season because everyone knows he spends his relief checks on whiskey and his children won't eat if he doesn't hunt