Comment by homarp

Some compelling use:

1) assistance to recognizing people (because low vision, because memory fails, because you have a lot of photos...)

2) ensure candidate X is actually candidate X and not a paid person to take the exam in name of candidate X

3) door access control (to replace/in addition to access card)

4) having your own X-Ray (like in Amazon Prime): identify an actor/actress/model

5) having your personal robot addressing you by name