I would never willingly get a smart (electricity) meter. We're rural and from where the supply point is, mobile phone signal is nonexistent anyway.
But there are general principles why I'd not want one. When something is offered (in this case, smart meters) I'll try and look at it from the suppliers angle to determine who benefits and what the risks are.
risks to me:
1. I can be cut off remotely either accidentally or deliberately
2. as far as i'm aware, the rate can be changed on the fly
3. as far as i'm aware, there's no shared protocol communicating with the devices among suppliers.
4. the above can lead to difficulty when changing suppliers, which does not exist with a standard meter.
5. there's the privacy aspect to the data. I consider my comings and goings and energy use how much and when to be private data.
6. if I want to determine power consumption over time, i can buy a device that just plugs into the socket. The meter itself doesn't need to be "smart".
If they want to cut my leccy off then I want to be informed about it first. Same goes for unit change. I do not want my "patterns" sold off to or stolen by some entity. The best way to ensure this does not happen is to not collect the data in the first place.
For justification, I've heard suppliers state that it'll be less expensive to bill usage with the assumption those savings will be passed onto customers (LOL) well it's not like the meter people all got a massive pay rise.