The article actually proposes the same. However, I see some issues with this: - _Very_ common forms usually need to have optional fields - Addresses being a not

The article actually proposes the same. However, I see some issues with this: - _Very_ common forms usually need to have optional fields - Addresses being a notable example, where almost everything is optional (example: PO boxes in Germany which don't need a street, or c/o notes) - And because of that, any form that does not mark required fields - even if all fields are required - creates confusion about what needs to be filled in, since we are trained that forms can and will include optional fields. Nothing disrupts the flow more than validation errors, because then you need to backtrack. - To make an implication of the previous item explicit: Just because it is obvious to _you_ that all things are required, it might not be obvious to the user.