I am aware of all of those points, the thing is people try to make excuses for why we can’t follow the rest of the world and expect some perfect solution day 1, which will just hold us back. Gotta start somewhere.

For the first point and point about audits, can still be handled as they are now, send people a w2 and bank reported prefilled form, ask them to add anything missing. Same as now, but less energy required to start or complete the task for most people. Kind of how most tax programs start your State income tax forms with the information entered in the federal one and what was declared the previous year which is already known and go from there.