Despite the widespread integration of generative artificial intelligence (GenAI) tools in higher education, there is limited empirical insight into students' experiences, competences, and readiness to adopt personalized AI companions. To address this gap, this study investigates three key questions: (RQ1) What are students' prior experiences with AI tools, their perceived digital and AI-related competences, and their interest in emerging technologies?; (RQ2) How do students perceive a hypothetical "AI Buddy" (a digital companion designed to support students throughout their academic journey) including adoption, benefits, and concerns?; (RQ3) How does students' willingness to adopt an AI Buddy relate to motivations for engaging in traditional academic activities? Based on a survey of 926 students at a Swiss university, students revealed widespread prior use of AI, primarily for text-based and productivity tasks, with moderate self-assessed digital competence. Students expressed strong enthusiasm for adopting an AI Buddy, valuing its potential for time efficiency, personalized academic support, and study organization, but expressed significant concerns about data privacy and over-reliance. A weak negative correlation emerged between AI Buddy adoption willingness and motivations for attending lectures or using library resources, while social and collaborative motivations remained unaffected. These findings suggest that AI Buddies may partially replace information-seeking behaviours but preserve the social fabric of university life. This study provides practical recommendations including the need for robust privacy protections and critical engagement strategies to ensure AI Buddies enhance, rather than undermine, the academic and communal value of higher education.

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