Should university attendance be based on secondary school performance or open to anyone who desires it？

I agree that university should be an opportunity for those who have achieved a good academic performance in secondary school. 

Firstly, academic performance in secondary education often indicates a student's readiness for the challenges of university-level studies. For instance, students who excel in high school are more likely to have developed the study habits and discipline necessary for success in a more demanding academic environment. 

Secondly, universities have limited resources and spaces, so it's practical to allocate these to students who have shown they can make the most of them. Take, for example, competitive programs like medicine or law, where good professors are limited, and they should allocate their time to students who have mastered the basics instead of wasting their time answering simple questions.