Re: 2G shutdown
The problem is that 2G spectrum is still the fallback for a lot of things and very useful.
That GPS tracker your firm fitted to your van? Probably 2G.
That smart-meter that talks home? Maybe 3G nowadays but the early ones were 2G.
And every phone falls back to 2G for a reason - it's the most ubiquitous, most kitted-out, and most easily received cell signal in the whole of the country. Without it, your phone would consume a LOT more battery power all the time anyway. Just because it says "3G" doesn't mean it's only using 3G. Similarly for 4G.
So not buying it is commercial death, really. It's like switching your cell network off. And the amount of places that can do 4G or even 3G at the moment is worse than those areas covered by broadband. Except you can't really tell farmer Joe that it's too expensive to run a mobile phone mast out to his home out in the sticks.
Expect to see call prices go through the roof now to "compensate" for the blinkered, unable-to-budget carriers who just want to sting customers and have been getting a free ride that they always knew would come to an end.