Ars Technica has a non-paywalled article: https://arstechnica.com/tech-policy/2019/03/sorry-amazon-philadelphia-bans-cashless-stores/ https://arstechnica.com/te

Ars Technica has a non-paywalled article: https://arstechnica.com/tech-policy/2019/03/sorry-amazon-philadelphia-bans-cashless-stores/ https://arstechnica.com/tech-policy/2019/03/sorry-amazon-phi... And notes that Massachusetts has banned cashless stores since 1978