Btw Suica is 200ms or less. To the parent, the credit card system will be parrallel to Suica/passmo, not a replacement. People would freak out with a system th

Btw Suica is 200ms or less. To the parent, the credit card system will be parrallel to Suica/passmo, not a replacement. People would freak out with a system that isn't prepaid (think school kids), doesn't fully work offline and is twice as slow as the current one.