whether university students should have part time job

People have different views regarding whether college students should work or not.Some people say that work experiences are very important because the students will learn what it's like to be working,and they will learn more of the realities of the society.More importantly,by working in their free time,the students can earn more money to pay for their college tuition,especially if their families have difficulties in paying their tuition.However,other people argue that students should focus on studying instead of working,or else their grades will drop,and they won't find good jobs when they graduate.Also,they think that studying time will occupy the students' free time,so the students don't have time to work.
In my opinion,college students should work if they have extra time on their hands.They should learn what it is like to be working themselves so that they'll appreciate the money they earn.They should also work because they should earn their own money instead of spending their parents' money.Yet it really depends on the individual whether he/she decides to work or not,because if he/she really wants to focus on studying and does not have financial problems,then it is better to not work.Otherwise,working experiences are very important in the future career.