Lol. Maybe in the UK or California. Google maps tells me the nearest Tesla charger to my apartment is 114 miles away, as the crow flies.
Pick somewhere 1000 miles away then see how long going several super chargers adds to the trip. They are along interstates, that’s ‘everywhere’ in the US when you actually need one.
Driving 100 miles in an EV isn’t even close to needing a recharge. The UK is covered in chargers and 3 hours is again fine on a single charge for any decent EV. So what exactly is your concern here?
Not having a full charge or renting something with an anemic range might be an issue if the rental place isn’t handing you a fully charged long range car that’s on them not the technology.
People claim that the UK is covered in chargers - but all the big ones seemed to be at least about 20 mins off of the motorway, then waiting to charge, then driving back to the motorway (burning up the charge to get there and back). On my holiday too, there's a long list of things I'd rather be doing.
I was there last week too (not driving) and I saw so many 'chargers' in public car parks that were just either covered up or needed some specific app to work - no way to use a credit card.
The whole thing is improving and if you had a house in which you could fit a proper charger then owning an electric car wouldn't be too bad, but actually renting one and driving it on a long trip - no way. It's not specifically the UK either, I'd say the same for most places I've been in and had a need to rent a car.