It's not that simple. There are a ton of legacy systems that upgrading would cost a lot of money and it's not the fact or replacing a 100 euros smartphone. A lot of these systems have a critical (safety) function, and thus if they stop working there would be consequences (I've mentioned the elevator alarm, but consider alarms for plants in remote areas that use 2G to send out alarms, let's say a pumping station for sewer, remote sensors in the mountains, dataloggers, electronic bracelet given to people that has restrictive sentences, etc).
This is the same reasoning why they keep active the "old" analog telephone network, why not everyone is switched to VOIP, because there are situations where it's still used by stuff that is critical or too expensive to replace.
> with 3G/4G/5G on higher frequencies as optional bandwidth booster.
There are 5G bands in the ~700MHz bandwidth (that was recovered by switching to more efficient encoding for DTV) that could be used that are even lower than 2G that is around 900MHz.
They could (and probably will) dismiss 2G for consumer use, but keep some frequencies that are used by operators that provide MTM SIM.
> Give them a reason to switch and they will adopt it - they both ditched their land lines.
I've tried to make my grandma learn how to use a phone to send SMS multiple times and failed. If she uses a mobile phone (rare situation) she uses it as a landline phone, that is type the number that she wants to call, not even using the contacts in the phone. To be fair I had difficulties explaining how to use a cordless landline phone.
Speaking of elderly, there are a lot of them that have dedicated devices that they can use to make emergency calls to registered numbers, that probably use 2G network (some other use even landline). Since these devices are even provided for free by the national healthcare system, I see that there is not much money to spend to upgrade them.
BTW, are we sure that all the smartphone out there support VoLTE? If not, to make phone calls they need to fallback to 3G/2G, it was a common problem not many years ago, with some providers (Iliad) that even started supporting VoLTE like less than 2 years ago...
This is the same reasoning why they keep active the "old" analog telephone network, why not everyone is switched to VOIP, because there are situations where it's still used by stuff that is critical or too expensive to replace.
> with 3G/4G/5G on higher frequencies as optional bandwidth booster.
There are 5G bands in the ~700MHz bandwidth (that was recovered by switching to more efficient encoding for DTV) that could be used that are even lower than 2G that is around 900MHz.
They could (and probably will) dismiss 2G for consumer use, but keep some frequencies that are used by operators that provide MTM SIM.
> Give them a reason to switch and they will adopt it - they both ditched their land lines.
I've tried to make my grandma learn how to use a phone to send SMS multiple times and failed. If she uses a mobile phone (rare situation) she uses it as a landline phone, that is type the number that she wants to call, not even using the contacts in the phone. To be fair I had difficulties explaining how to use a cordless landline phone.
Speaking of elderly, there are a lot of them that have dedicated devices that they can use to make emergency calls to registered numbers, that probably use 2G network (some other use even landline). Since these devices are even provided for free by the national healthcare system, I see that there is not much money to spend to upgrade them.
BTW, are we sure that all the smartphone out there support VoLTE? If not, to make phone calls they need to fallback to 3G/2G, it was a common problem not many years ago, with some providers (Iliad) that even started supporting VoLTE like less than 2 years ago...