2. The courses in community colleges are relatively simple, and they can get a high GPA, which is very helpful for transferring or applying for graduate students.
I learned from students before that one-third of students in each class in Berkeley are transferred from community colleges. Their GPA in the first two years is very high, so their comprehensive GPA in four years is much higher than that of freshmen studying in Berkeley, and they have an advantage in applying for graduate students.