How is that different from literally any other e-shop experience? Do you always go to a Main Street shop to buy everything, or do you order things online?
Groceries are just another commodity sold online. And the "value added" is not exactly tiny.
Your assumption that home delivery does not add much value compared to driving to a mall and carrying your purchased stuff back home rests on a lot of assumptions:
a) you can drive and have a working car at your disposal,
b) you have no other duties, such as caring for young kids or a bedridden person, or you can afford paid help,
c) you are fit enough to carry the stuff you bought,
d) you are not contagious, or you trust your immune system enough to interact with contagious strangers; this is not just a covid thing, even a "good" flu season has some mortality,
e) there even is a suitable mall in your proximity.
And another perspective: maybe driving to a mall and back is virtuous in your book, but it almost certainly isn't as eco-friendly as home delivery. A small truck carrying groceries for 20 families does not burn anywhere as much gas as 20 families driving their sedans to the mall and back home. Its route will be more efficient and only one living person, the driver, is being carried around by the car, not 20+.
Groceries can have expiration dates you might want to check, and produce and fruit quality that varies. Or frozen food that you might not be sure of how long it's been sitting outside of the freezer.
Also, there are so many grocery stores (where I live at least, and in all suburban US areas I've been in), that you must be driving by one at some point in the week. The transportation costs are nil, so the only difference is the time you spend in the grocery store. Which is also very low if you're familiar with the store.
Therefore, the only missing variable is how much you trust the worker that is walking around picking things up, and for me, that is very little, especially if there is a price premium with picking up a grocery order.
Groceries are just another commodity sold online. And the "value added" is not exactly tiny.
Your assumption that home delivery does not add much value compared to driving to a mall and carrying your purchased stuff back home rests on a lot of assumptions:
a) you can drive and have a working car at your disposal,
b) you have no other duties, such as caring for young kids or a bedridden person, or you can afford paid help,
c) you are fit enough to carry the stuff you bought,
d) you are not contagious, or you trust your immune system enough to interact with contagious strangers; this is not just a covid thing, even a "good" flu season has some mortality,
e) there even is a suitable mall in your proximity.
And another perspective: maybe driving to a mall and back is virtuous in your book, but it almost certainly isn't as eco-friendly as home delivery. A small truck carrying groceries for 20 families does not burn anywhere as much gas as 20 families driving their sedans to the mall and back home. Its route will be more efficient and only one living person, the driver, is being carried around by the car, not 20+.