[doctorstupid]

Perhaps that toilet paper dispenser with facial (faecal?) recognition might be hinting at the future of retail. I can imagine people walking into supermarkets, picking their items, and then simply leaving through the doors. Stealing will occur when a face isn't attached to enough credits. Ditto for public transportation. Sounds terrible to me.

[IanPBann]

This is very similar to the Amazon Go store currently being trialed by Amazon employees in Seattle. You check in to the store upon entering using the Amazon Go app, pick your items, then simply walk out. The store tracks what items you have on you then charges your account on exiting.

The only 'feature' missing from real life compared to your imagined scenario is using facial recognition to automatically determine who is in the store.