Re: queer - WRONG
ADSL is often run from street cabinets where the distance (and/or cable quality) make running ADSL from exchanges impractical (FTTC - fibre to the cabinet with ADSL for the last hop is not uncommon).
Depending on local conditions, connecting a mobile network mast by a fibre link in a nearby cabinet may be the most economic method. (As BT owns a lot of cabinets with fibre connections and also has a lot of mobile network masts, I would be surprised if they do not use this method on occasion.)