It's wrong to abuse a privilege someone gave you.
Justin's mother allows him to stay up as late as he wants as long as he maintains good grades.
Justin wants to have freedom over his schedule.
Justin finds himself naturally wanting to sleep by 10 before busy school days.
Justin plays video games until 3 am on most days and fails some courses.
Juston maintains good grades and cant occasionally stay up late if a special situation happens.
Justin loses the privilege and most now go to bed at 9 on weekdays.