Do you think it is necessary to upgrade to undergraduate course? Why?

If you have spare capacity in your studies, it is quite necessary to go to college. Because the undergraduate diploma has more advantages than the junior college diploma when looking for a job in the future. What's more, after the college entrance examination, if possible, you can continue to take the postgraduate entrance examination.

If you study in general, it is very stressful to go to college. That's not necessary. It's better to learn a skill well and find a job early to exercise. Maybe the future development will be good.