You do what Singapore does and pass out bulletproof hardware tokens (no charging needed/possible) that do the same job. https://www.straitstimes.com/singapore/

You do what Singapore does and pass out bulletproof hardware tokens (no charging needed/possible) that do the same job. https://www.straitstimes.com/singapore/10000-seniors-get-first-batch-of-tracetogether-tokens https://www.straitstimes.com/singapore/10000-seniors-get-fir...