As far as distances, a Tesla MS can go 405 miles. That would be just fine in the boonies. Any EV could handle the 20 or 30 miles you gave as an example. EVs are more evolved than that.
Let me help you with this.
Even Tesla recommends not charging to 100% unless you need that range for an upcoming longer charger-to-charger trip, as in traveling across several states or across the country.
The way most people use EVs around town is to charge them to between 60% and 80% for local driving. And millions of Americans park their cars in driveways and parking lot of apartments and condos, not to mention offices and workplaces that have no on-site charger. So they will be making a lot of short 5 to 30 mile trips, back and forth to home, office, school, grocery store, recreation, etc, end to end, before they take the time to plug into an available charging station at the mall or other public charging station, once a week or maybe twice a week.
I can buy a nice $20,000 car today that can go 500 miles on one tank of gas, I can then spend 5 minutes getting gas, and then go another 500 miles, easy. No waiting, no range anxiety. When an EV can do this, and sells for 20 grand, call me.
Also for our purposes here, many of us who might consider an electric pickup, SUV, or van, would want to pull a trailer. Most larger and premium EVs can pull a trailer, but the range drops to 50% or less, especially if the trailer is larger and or heavy, or with a larger frontal area such as a camper or cargo trailer.
Many years ago (maybe 5?) on this forum we had a discussion thread about building out a camper trailer with a large on-board tesla style battery installed under the floor of the trailer, to help provide the EV combination (truck and camper for example) the original range it had without a trailer. Being able to charge the EV while in motion would be an excellent way to extend the range. Then we also discussed hooking up the EV and the 'camper battery' to the 30 and 50 amp RV hookups at the campground as one would do, and what (or if) the campgrounds might be able and willing to accommodate in this scenario.
So you see, we are not fossils here, many of us would be willing to operate on the 'bleeding edge' of technology as long as it provides us with what we need, at a reasonable price/value ratio.
Mainly: longer range with no restrictions, easy recharging nearly anywhere (no 2 to 4 hour waits at charging stations with a 25 foot camper hanging out in the access lane near the charger) no expensive battery replacement in 100,000 miles, hopefully a reduced negative impact on the environment, and importantly, it has to all be affordable and good value for the money spent.
Lots of electric vehicles including Tesla, Ford Lightning, Chevy Bolts, and Rivians have had numerous safety recalls (some EVs spontaneously catch fire!) so an owner who is nomadic might have difficulty finding and scheduling a repair, while trying to live in (or out of) that EV. At least Ford and Chevrolet do have a network of service facilities around the country.
Then there is the difficulty with repairs after a collision. EV repairs are very specialized and expensive, and parts are in short supply. Tesla and others have been involved in 'right to repair' lawsuits. This alone might be reason enough to avoid them for the time being. Maybe the future will look brighter for E-RVs, if and when we can get past some of these issues.
For now, and the next few years, EVs make sense in a limited set of scenarios (mostly local commuting and grocery-getting not to mention fans of Tesla, Rivian, etc) but not really suitable for most of the 'rank and file' van dwellers and RVers that this forum is dedicated to.
This might change in the future, but I would not advise a van or RV shopper today to wait for an all-electric powered 22 foot E-Camper van or 35 foot electric E-Motorhome in the $75,000 price range that can go 500 miles, and stop for 10 minutes to fully recharge almost anywhere, then return to the road and travel another 500 miles with no worries. Cuz those wont exist for awhile.