With the proliferation of digital learning tools, a growing number of college students are opting to complete their coursework through online courses, even going so far as to fully replace traditional in-person classroom participation. At the same time, many educators worry that this trend will undermine the core value of "interpersonal interaction" and "campus experience" in higher education. In your view, is the fundamental purpose of a university education to ensure the effective transmission of knowledge, or to cultivate students' critical thinking and abilities through collaboration and social engagement? Please use specific examples to illustrate your stance and reasoning.