All of those satellites will have to be tracked by Norad, I am sure. What are the rest of the unintended consequences? There is always a backside to these things that are not thought of until they appear.
Someone found a way to use the StarLink LEO satellite constellation for an alternative to current GPS. The operational penalty is only 1 to 1.5 percent degradation to stated StarLink capabilities. Would give non-enhanced GPS accuracy on the ground of 70 centimeters.