As others have commented it is the season to start losing students . 1 . The cold weather starts weeding out the committed from the noncommited . 2 . Juku starts to kick in with some ferocity for certain grades ages which often makes them scale back on certain after school activities . 3 . The offical play time ends at 430 for kids now instead of 5 pm . Some parents kids get upset that they don ' t have time to play with their friends after school and attend English classes . It often causes a few kids to quit . Don ' t sweat it too much especially if your income doesn ' t depend on your student numbers generally the staff will let you know if they think that your actions have caused a student to quit . If they aren ' t upset , you shouldn ' t be .