I don't think there is any country where it's more expensive to charge because of the cost of electric. It's just the charging stations like the title says....

But.. by far.. more people charge from home and with gas you don't usually get the benefit of filling from home so of course there is no cost savings, but there is the extra hassle. Most people will not need to charge their car out and about, their daily commute it well below a single charge from home...especially in Europe where everything in more crammed together and people drive shorter distances.