[reliablereason]

I wonder under what circumstances footage from the glasses are uploaded for classification.

Probably this is people asking the glasses something about what they see and the glasses uploading video for classification to generate an answer.

People think it is "just AI" so are not very concerned about privacy.

[pfortuny]

Always by default I assume.

[reliablereason]

Unlikely. That would be extremely expensive in bandwidth, storage and compute. Deciding to build the product like that would be an engineering decision that i would fire someone for.

[pfortuny]

Well, say a frame per second. Also: how many of these are there today?

You can discard them after tagging+using them for learning.