This is not a tradeoff-less scenario. Most users will be pretty irritated if, for example, you ask them to re-upload the front and back of the id in question at

This is not a tradeoff-less scenario. Most users will be pretty irritated if, for example, you ask them to re-upload the front and back of the id in question at a later date because you deleted it last time for their protection. I personally think doing ID verification of physical documents over the internet is just a non-starter. I've unfortunately had to support such systems for years at a time, and I'm thankful I don't do it anymore.