That is true and therefore only a good measure in my friends and family circles.
Many of these characterstics will be shared among us (climate, roads, landscape, charging infrastructure etc).
Part of it is getting their thought processes away from "peak requirements" and into the direction of "average everyday" which for me is a more important measure.
I wouldn't recommend cars be advertised this way but person to person its quite useful.
I do it with EVs (and not gas cars) because many people worry about range and charging times.
They also wonder whether it's practical to own one without having access to home charging.
Explaining it this way conveys the "impact" to daily life better than talking strictly about numbers.
Me saying "usually I charge once a week while getting groceries" is lived experience and quite relatable (I hope).
I also try to be honest and not make any claims about use cases which are not mine (I'm not trying to sell something). I very seldomly do long drives > 2h so if someone does that regularly, my personal experience won't apply.
Of course if people want to nerd out over kwH and kW I'm ready to do that as well but many don't care about that.
Edit: Everybody knows how gas cars work. No need to explain that. But my friends and family are curious about EVs.
Sounds reasonable - thanks for the thoughtful reply. I agree the "delta of inconvenience" is the important measure. The on-demand model we use for gas cars is inconvenient even for gas (hate stopping for gas!) but magnified by longer EV charge times.
Can charge at home? super convenient & time savings.
Charge at work? may be subsidized by employer, but you may have to go move the car during the day, etc.
"while shopping for groceries" is an interesting "3rd space" - you're going there consistently, so if charging works on that time frame (charger space available, doesn't require you to delay after shopping or interrupt the shopping, etc.), it's a great fit.
And that seems to be quite relatable if my circumstances are known by the recipient.