We have a different problem re GNSS in the UK. We have all the satellite visibility and WAAS type augmentation in place. But very few approaches in place mainly LNAV, very few LPV.
Initially our CAA very anti anything GPS. Most of the regulators non pilot or ex Military Navs.!
We now have the situation that the CAA requiments for an IAP and drawing up a letdown are too expensive for the airfields operators. There is no State financing. Reportedly £50000 plus design fees. Ridiculous requirements for full ATC, not allowed at air/ ground comm airfields, and runway/ app lighting needed.
So we are denied the increased safety for a Nav aid that requires no ground infrastructure, because of cost/ and red tape.
The first few LNAV approaches even required a mandatory NDB as part of the approach!!