Not in any supermarket I've been in, 4 and 6 pints are the commonest. Maybe us northerners aren't trusted with metric milk yet! Only time I see litres is some

Not in any supermarket I've been in, 4 and 6 pints are the commonest. Maybe us northerners aren't trusted with metric milk yet! Only time I see litres is some of the niche brands (like Cravendale and branded organic) in bigger supermarkets, or 500ml in corner shops and some garages. So they can charge more. Presumably people compare 2l price with 2.3l / 4 pint instead of £/l.