I see, so that 28K number looks solid, the 68K upper bound applies to a scenario where someone doesn't switch to an EV but buys one and still keeps driving an I

I see, so that 28K number looks solid, the 68K upper bound applies to a scenario where someone doesn't switch to an EV but buys one and still keeps driving an ICE vehicle too, which seems odd - I would think many drivers could use an EV for all their shorter trips (certainly shopping, likely commuting), but paying to register/license an extra car just for the occasional long trip doesn't seem very practical.