It's a pretty big operation to purge all of that legacy gear, so the government made a multi-billion dollar fund to support the removal over time, and I believe

It's a pretty big operation to purge all of that legacy gear, so the government made a multi-billion dollar fund to support the removal over time, and I believe gave them until 2025 to finish the purge. And even that isn't exhaustive: They can still operate it after the deadline, they'll just be restricted from various government subsidies and programs. So the government didn't flip a switch and tell them to make it disappear. They expected it to be a staggered, eventual process.