IMO smart meters will be the next water meters.
Early on with water meters people were all negative, bah I want to run the tap for hours and it will cost more type stuff. Over time its become clear for most that unless they abuse water its better to pay for what you use.
Everyone paying attention helps to drive down consumption, which avoids more infrastructure being needed for everyone abusing it.
So I see elec/gas smart meters as being the same. Paying for what you use when will be better for many. Real time pricing should help to pull down the big peak. People will adapt and evolve their patterns, making better use of cheap energy. Such as doing a nice slow cook over night then a microwave heat when they need it.
I think you will see the water equivalent of no meter being the elec/gas equivalent of not paying for time delimited usage, sure if you really want to have fixed unit pricing you can, but its going to cost you more than if you go smart and have variable, unless your vast majority of usage is during the very narrow window when the pricing will be at its absolute highest. IE not penalising the majority for the selfish minority.
I believe that sooner or later everyone will get a smart meter anyway, since all meters have to be replaced within a certain lifetime, so they will not fit another dumb meter (for dumb users

) at that point.