Welcome to the cold cruel world. Your child will get to college and find out that if he has to turn in an assignment, if it is one minute late, the system will shut you out, your work will not be accepted and there will be no recourse to making up late work.
Most of us who work jobs with deadlines find that if we don’t meet deadlines there will be consequences (miss too many deadlines and you won’t have to worry about that job any more).
Time management is essential for students on their way to college. One of the biggest challenges in students transitioning from high school to college is their ability to manage their time. If your child knows that the teacher does not accept late work and will get dinged because of it, you would think the first time this happened would be enough from preventing your son from doing it again.
Don’t look at it as someone punishing your child, but help your child to develop good life long habits. Someone being nice and making it easy for them, does not always help them in a situation where they will not be coddled (college, grad school, professional school and the world of work)