A normal store doesn’t even have the turnstiles. Just grab your stuff and walk out casually. How do they keep from getting robbed? Why is this different? At lea

A normal store doesn’t even have the turnstiles. Just grab your stuff and walk out casually. How do they keep from getting robbed? Why is this different? At least in the Go store, the system can presumably detect people who haven’t badged in / jumped the turnstile, before they actually do anything.