I designed software for the AEC industry in the past. You wouldn't believe how engrained are signatures in their mental model for doing things. So much, that we

I designed software for the AEC industry in the past. You wouldn't believe how engrained are signatures in their mental model for doing things. So much, that we once ended up builiding a functionality that required a scribble that would get attached to a finalized inspection. Not like that was different from simply pressing a button and acknowledging some message. No cryptography, no standards about legally binding e-signaturees, nothing. They just wanted the scribble of the inspector attached to the form. Signatures are basically a way of signaling approval, ackowledging something or declaring intent. I designed that feature and always thought about it more as a intentional friction to make someone think briefly before closing or approving an inspection.