The transition from high school to college involves significant changes in various aspects of student life. While high school is typically mandatory and free, college is optional and requires payment.
Collage/university is optional and you have to pay
Your time is structured by others. Limits are set by teachers, parents, and other adults.
In collage/university the length of the classes are longer
In Collage/university you have your own time management, to manage your freedom
similarities
Collage/university and high school all prepare you for your career path
Subtopic
Your grades are important for both high school and college
In high school and college the main objective is to learn and become more knowledgeable to help prepare you for the big world ahead of you because technology is becoming more advanced each day
Collage/high school have teachers, textbooks, tests, homework, and final exams. They both have teachers, textbooks, tests, homework, and of course the dreaded final exams.
Throughout the entire course your teachers are preparing you for the final exam so you can move on to a more advanced class.