"(e.g. few people need to fill out tax forms)" Actually I don't get why the gov makes people do one in the US and Canada. Most people have their income reporte

"(e.g. few people need to fill out tax forms)" Actually I don't get why the gov makes people do one in the US and Canada. Most people have their income reported to the gov by their employer. That information should be downloadable by people and then what is missing could be filled in, mistakes fixed, deductions not already calculated added...