If your annual mileage is low, then a small petrol car makes perfect sense, because even with the cheapest electricity that you can get, the actual annual saving in pounds and pennies will be a relatively small amount (and obviously if you charge from expensive street chargers then there will be no saving at all).
That been said, unfortunately I forsee more and more draconian and punitive measures imposed on ICE cars as time goes by, and in this respect an EV will have an element of future-proofing against future government's trying to bring about the demise of ICE cars sooner that it would normally take.
On another note, I have both an EV and an ICE car, and I'm not sure that the statement that EVs are more expensive to insure - what is this based on? I am not saying that this is not the case, just tgat this wasn't my experience.