EV owners: what cables are standard at charging stations?

We're just in the market for a new car and looking to get an EV.

One of the optional extras is a very expensive 6m Mode 3 Type 2 400V 16A 11kW IEC 3P cable "for public charging stations".

I assumed the cables were already there are the charging stations, like the hoses at the petrol bowser?

Should we purchase this cable, or is it unnecessary? We don't have a fast charger at home so, for the time being, we're just planning to charge off the (included) 240V 10A cable at home.