This is the law in Illinois and Wisconsin. I don't know what the charges are in Wisconsin, but in Illinois it costs me $12 for a 2-year sticker."
As a bookkeeper, I would bet that the price of processing the paperwork and the sticker is $12 or more, so this is just a giant cost of money or at best, a wash of money. Employment for another group of paper pushers and a bopther for the public.
Next they will go after the kids on the innertubes. After all, those work both summer in the water AND winter on the snow...
Lots of backlash from the
sheep local voters.
Now anything with a motor, even a trolling motor, has to have a state sticker.