I'm originally from Israel, but have lived in London for 9 years and now in Berlin in the last 3+ years. I can't say I notice a vast difference. Especially if I look at middle-class, educated, well-earning people, which this kind of service targets.
There could be some cultural difference, sure. But I think it's relatively small. Other factors, some mentioned on other comments, can come into play. For example:
* much easier way to order fresh groceries online in the UK (including Sunday delivery, 1 hr delivery slot, mobile apps etc)
* execution, execution, execution (I can't tell about the OP, but the founder of Marley Spoon is also a founder of Delivery-Hero, which is well-established in the fast-food delivery online market)
Do you know of a resource that describes these various cultural differences? I could research each country/region individually but your post made me wonder how to develop a knowledge of these country-to-country differences that can be used to assess feasible of a product/venture
> Do you know of a resource that describes these various cultural differences?
Unfortunately not. In this case it's just personal experience. I am a German who has been living in the UK for 4 years now. Over here everything is more fast food and 'instant' oriented than in Germany.