Unrelated but speaking of throwaway addresses, it would be cool to be able to create a throwaway postal address (which is then translated by the postal service), so online shops don't get your personal address information.
If PO boxes were free, it'd solve one part of which I take issue with, but it costs like 4 euros per pickup. If your income is low, the 4 euros on top of the some 20 euros for banking and another 20 for a cellular plan will quickly add up.
Several brick and mortar retailers here require your address and personal info even when buying and picking up physically at their store and several have had their databases hacked and leaked.
Why do I need to give those when they're not shipping anything to me and I pay in cash?
We have an agency called Maistraatti which is our nation wide registry office which will have all of my postal information, family relations etc.,basicslly anything related to me as part of our society. Why can't I just provide online and physical retailers some ID that the registry can then translate into my actual info when it's actually needed, for example for shipping or if they want to check my credit etc. They could just save that ID for that purchase and temporarily check the necessary info through an API.
Hashed info would be one solution, the retailers would only get the hashes I provide and the registry office could then match those hashes to my info. In essence, I could basically create single use throwaway information for each retailer if I'd wanted to and they would be none the wiser.