“I was wondering if that included married couples who have an EV and an ICE car.”
I can’t tell you where, but I read some time back that 78% of EV owners also own an ICE vehicle.
That’s my wife and me. We own an EV crossover and drive most of our miles 26K per year) in it. We also have an ICE pickup. If we didn’t need 2 cars anyway we wouldn’t have gotten an EV because there are some trips an EV won’t do. Having one car as an EV is practical for us because we can charge it at home and also drive it enough for the gas savings to be worth it (even if gas prices go back down to Trump levels). Yet with all the driving we do in the EV, the next car we buy will almost certainly be replacing the old ICE pickup with another ICE pickup.