Competencies build throughout grade school and high school. Most colleges would expect students to have already mastered: ability to follow directions ability to "self-govern" ability to manage time...
College students, like any group of people, come in all dimensions of personality, skill, and accomplishment. I do find it unusual that colleges and universities admit people with very poor writing...
Some reasons might include:
Lack of vision in terms of career goals and objectives Lack of determination Poor study skills Failure to maintain academic progress Lack of good organizational skills...