Youth in Mexicano-speaking communities in the state of Tlaxcala, Mexico, have multiple ideologies of language and local identities. Young adulthood is a crucial time in which ideological positions on Indigenous language and identity can be in flux, thus having important consequences for understanding language shift and revitalization. Drawing on ethnographic observation and interviews, I focus on youth and young adults' ideologies characterized by ambivalence about Native language use and identity. These data show how youth are caught up in a nexus of multiple ideologies influenced by globalizing forces and racialized societal discourses that denigrate Indigenous identities. To the outside observer, ambivalence is at the center of youth ideologies, yet ideologies governing language shift can change over time. Reflective teacher narratives offer evidence of changing ideologies and hope for language revitalization. Ambivalence needs to be studied further as a sociohistorical response to minoritized status and intrapersonal conflicts about authenticity. (Contains 6 footnotes.)