They're fine even without it if there's infrastructure. Supermarkets around me have fast chargers, so I just recharge during my weekly shopping (BEVs don't need to be plugged every day).
Also, how many charging stations are there compared to the number of parking spaces? The markets I've seen have 2 charging stations with about a hundred parking spaces. The stations are always in use, so they're fairly useless unless you want to hang around for most of the day.
Modern BEVs typically need 30 minutes to charge from 10 to 80% (it slows down asymptotically above 80).
I have 150kW chargers around here (southwest UK), which add 80 miles of range in 10 minutes. My weekly shopping usually takes longer than the car needs to fully change.
80 miles from 15kWh would be over 5 miles per kWh which seems quite high.
What’s the cost per mile compared to petrol?
How many 150kW chargers are at your local supermarket? How many car parking spaces in total?
I've had EVs since 2019, and in the meantime the infrastructure in the UK went from one broken charger per city, to every McDonald drive thru having a DC charger. In the western EU it's even better with a good 300kW charger coverage along all highways.
150kW * 10/60 = 25kWh. That's 80mi at 3.1mi/kWh.
Charging used to be dirt cheap before the Russian invasion. Rapid charging prices have increased 4x since then, and per mile they're unfortunately on par with petrol now.
Level 2 chargers that generally push 6kw of power and take hours to fully charge a car aren't very useful for brief charging stops like this.