Hmmm I guess you could use it and have snail mail as a backup...It'd be better than nothing probably?

Yea I'm not sure how you validate everyone in the video has a verified identity and age... Perhaps machine learning could automate some of this. Stripe has selfie validation... so if you could do something like that on the video where faces in the video are compared to the identities provided... If there isn't a match then the video is flagged for review.