Students are free to pursue their educational goals; appropriate opportunities for learning in the classroom and on the campus shall be provided by the district. The college shall maintain an open-door-policy, to the end that no student will be denied admission because of the location of the student's residence, or because of the student's educational background or ability; that, insofar as is practical in the judgment of the board, curriculum offerings shall be provided to meet the educational and training needs of the community generally and the students thereof; and that all students, regardless of their differing courses of study, will be considered, known and recognized equally as members of the student body: Provided, That the administrative officers of the college may deny admission to a prospective student or attendance to an enrolled student, if, in their judgment, the student would not be competent to profit from the curriculum offerings of the community college, or would, by the student's presence or conduct, create a disruptive atmosphere within the community college inconsistent with the purposes of the institution.