@sjw @Kerosene Like I said in my post, issue is that 2G isn't only used with a normal handheld phone.
Just like how a lift (elevator for USA? I never remember which) has a phone part to call for emergencies when it gets stuck, which is specially useful given that most of them are faraday cages.

Cutting off 2G is a thing you plan for 10+ years because of it's massive usage, quite like IPv4→IPv6 migration.