Peter,
very true. We just booked a trip out of Heathrow & I'll take Trigger my MG EV. As it is an early flight we are staying at a Premier Inn nearby. That is next door to a charging station with 12 of 150kW chargers. Whilst the MG could in theory get us home with 10% left I'll top it up.
But the reality is that on that journey (A14,A12, M25 & M4) there are a great many charging stations.
Download the electroverse app and you will be surprised at the number. I see Mandello has 2 sites each with 4 chargers for example.