At the moment people give away the purchase history for next to nothing with loyalty cards and such.
Worse still, your so called Doctor knows more about your history than youself. The rightful way you may grand him/her access to your history for some time. Your data, your work, your comment... is your income, your money.
For something to be lawful it has to work both ways. If someone ask of proof of anything, ask for proof first, if satisfied may proceed to next level.
Can Banks & Governments 'Prove Their Wealth'?
Funny how people give away their data for almost nothing — loyalty cards, apps, whatever. But when we ask banks or systems for proof, it’s silence. And with AI growing fast, soon we won’t be able to live without it

. Whoever controls the data and AI, controls the game.
