Justin King (former CEO of Sainsburys in the UK) said that their data showed that people start ordering groceries for home delivery is when they start a family.

Justin King (former CEO of Sainsburys in the UK) said that their data showed that people start ordering groceries for home delivery is when they start a family. After a few weeks, when (usually) the mother of the new baby is willing to venture out, she will visit the grocery store to buy extra things. Turns out that the spending level of online groceries doesn't drop, but the spending level of ad-hoc in-store purchases does, resulting in an overall increase in spending. This is true for my family. The UK also has seen an increase of convenience stores which carry a 5% price premium. People like to by a little often, than to buy a lot every week. The behaviour of grocery shopping has shifted a lot in the past 5 years in the UK. Edit: Spelling and clarity