A student applying to college is trying to communicate:

I’m ready and excited for college.
I’ll make an impact inside and outside of the classroom.
I’m resilient enough to forge through difficulties.
I’ll take full advantage of the opportunities available to me.
I’ll enjoy learning from and interacting with the faculty.
I’m prepared for the independence of college.

How do you think those messages land if you also communicate:

But when I have a question for the admissions office, my parents always call for me.

The more involved parents are in the college admissions process, the less involved the student is. And that message is incongruous with everything a student is trying to communicate in their application.