Something I was pondering the other day, is that similarly to how dashcams are becoming a more everyday addition to cars for self-protection, so in time the personal equivalent of a dashcam might be necessary for in-person interactions. (Basically, the personal equivalent of the bodycams that police are meant to use.)

Such smart glasses may actually lead us there: just record everything I do and say in a week, and I'll tell you it's safe to delete it if I've not had any concerning interactions in that time period.

I don't like that society might be heading this way, but I'd not bet money against it.