So... you're suggesting we should trust in centralization?
Offline verification service, registration without email or phone number, selfies with dates,
street selfies, what next? you just trying to make a new North Korea to adopt a very strict rules and if someone not follow it, he would get a shot by unknown sniper.
I could imagine methods based on cryptography, where an image for example can only be considered valid if the user signs it digitally together with a message that links it to a service and date.
Nothing different to NFTs and everyone can know your face, locations etc they might able to know your net worth too.