Which is most convincing evoluationary or learning theory of attachment?

The evolutionary theory of attachment suggests that attachment behaviors have evolved as a survival mechanism to ensure infants receive care and protection. This theory is supported by cross-cultural studies and studies on non-human animals. On the other hand, the learning theory of attachment focuses on how attachments are formed through reinforcement and conditioning processes. While both theories provide valuable insights into attachment, the evolutionary theory is often considered more convincing due to its emphasis on biological and evolutionary reasons for attachment.