This paper focuses on the perceptions of technical high school tutors in Mexico about students from lower socioeconomic backgrounds in the context of global curriculum reforms and institutional hierarchies. Through two novel concepts in education, culture of poverty and cultural deficiency, the paper explores: (a) how structural constraints shape tutors' perceptions and practices with students, and (b) how tutors' perceptions contribute to reconceptualise discourses of deficit and the culture of poverty in a more comprehensive way. Through in-depth semi-structured interviews with nine tutors working in Tijuana, Mexico City and Tuxtla Gutierrez, the main themes of analysis are: tutors' working conditions, their perceptions of and relationships with students, the quality of education on offer, curricular reforms, and behaviour management. Even if systemic factors contribute to tutors' perceptions of deficit amongst students, we found valuable experiences of empathy, trust, and encouragement amongst tutors that show both their agency and resilience.