It doesn't really matter how often it happens, it's the fact it happens at all that is off-putting.
With my petrol car I can happily drive 60 miles to visit my mum, take her on a day out to the seaside (40 miles each way), then drive home. At 200 miles that's less than half a tank.
With a Nissan Leaf e+ 62 kWh I might make that if I'm very lucky, but I wouldn't risk it, as running out of power on the motorway would be reckless. I certainly couldn't do it in adverse weather. So I'd need to charge it somewhere mid-trip. But with no charging points at any of the places we stop it would mean a dedicated stop at a motorway service station for a while. At the two service stations en-route there is one charger in one, and three chargers in the other. Chances are I'd have to queue there for an undetermined amount of time waiting for a charger, that's if they're not out of order. Sure there are other chargers, I could divert to some backstreet car park somewhere, but the planning and stress of it and the unknown amount of time it would take just makes the whole rigmarole undesirable.
When real-world range approaches 300 miles then the typical long journeys that most people make in a day become doable. But at the moment to get that you're talking ~£100k for a Tesla or Merc.