As a city boy, who works for a living, I think it'd be a lot easier (for me), if they didn't bother delivering at all, but just pinged you an email saying "it's at the depot" - and keep the depot open till, I don't know 9pm or whatever. More convenient for the customer, and a good bit cheaper for the couriers I dare say.
Fair enough, you still need home delivery for a 3 piece suite / ton of bricks or whatever, but for normal size parcels,home delivery per se is not that useful a thing for many people.
One snag with couriers generally, is that their customers are the sellers not the recipients, so all the nuisance at the receipt end doesn't really figure in the transaction. One of them, I think UPS was a huge nuisance to deal with as the nearest depot to Bristol was supposedly Birmingham, and as a working man I can hardly take a half day to await delivery of a modest parcel.