Worth pointing out that here in the UK much, in fact I suspect most, grocery delivery is done by existing supermarkets rather than companies that were originall

Worth pointing out that here in the UK much, in fact I suspect most, grocery delivery is done by existing supermarkets rather than companies that were originally independent startups. Ocado might be seen as an exception but even that was started out as a partnership between Waitrose and another company (I forget which). I'm also discounting more niche services, such as Graze, btw.