I have had smart meters in the past, although not at present. I think people get overwrought up about them. They are just meters that send readings to your energy supplier and now can offer you cheaper rates at busy times, if you can manage without power for an hour or so.
All these little displays in the kitchen are just window dressing. If you want to know your consumption there were identical gadgets around before smart meters, and probably still are. We had one of these, called an Owl, 15-20 years ago. It showed us that our consumption went up if we put on a white appiance, something we had worked out decades earlier and that generally we were economical with energy.
When we got a smart meter, we put the device in a drawer - and then it got lost. Didn't really matter as we changed our supplier and it ceased to be smart. When the meter needed changing we were given an unsmart meter. I do not know why, it was never discussed with us.
I am now on a list for smart meters. a meter, is a meter, is a meter and as our electricity meter is outside and last time I got soaked when I went out to read it. So change is on the way.