This report details the results of a qualitative research study (focus groups and indepth interviews) with children and teens aged 12-17 (N=59) in Ireland about the perceived effectiveness of Artificial Intelligence (AI)-based cyberbullying enforcement mechanisms on popular social media platforms. The adoption of the UN General Comment No. 25 established that children’s rights, as outlined in the UN Convention on the Rights of the Child (UNCRC), apply in a digital environment. We therefore examine children’s perceptions about how AI-based enforcement mechanisms affect their rights to protection (safety), participation and privacy. We inquire into how children perceive the effectiveness of the proposed mechanisms; and how these could be made more effective from their perspective; and which changes or alternatives they propose. The proposed interventions are based on social learning and social norm theories, and they include designated support contacts, bystander and school involvement, and systems that are designed to reward prosocial behaviours and deter perpetration. We find that children would welcome many interventions but raise concerns around their privacy and effectiveness of what has been proposed. We provide policy recommendations for the technology industry and policy makers.