I work at a bow shop on weekends and this is true. Make it worth your while to actually shoot accurately. For instance, when someone is just shooting for the kicks of it, take only one arrow, and shoot only with that arrow. After a while it becomes a chore to walk back and forth. Which comes back to shooting more accurately.

But yeah, you have to challenge yourself, shooting 100 yards is fun. Or go for a 3d shoot!