A Cross-Country Evaluation of Sentiment Toward Digital Payment Systems in Africa. - Isabel Agadagba; Triphonia Kilasara; Takudzwa Tarutira; Noah Shumba; Nicolas Christin; Obigbemi Imoleayo Foyeke; Assane Gueye; Edith Luhanga; Alexander Rusero; Karen Sowon; Giulia Fanti (CoRR, 2026)