There have been any number of attempts of this over several several decades. I remember being an early customer of some of the first of these virtual grocery s

There have been any number of attempts of this over several several decades. I remember being an early customer of some of the first of these virtual grocery store efforts back in the late 90's. All of the pure play efforts either failed or looked more like virtual convenience/liquor stores than grocery... a small number of consumables with longish shelf-lives and booze on demand. While many of the positives you mention are true, I think it gets more difficult once you get into the logistics around storing and especially moving smaller lots of products, many of which aren't shelf-stable or require special handling such as refrigeration. These things limit the delivery areas and order volumes per vehicle that can reasonably be served by any one warehouse or vehicle which pushes up the costs of executing those deliveries. In a traditional bricks-and-mortar grocery, those transport & logistics costs still exist, but are born directly by the customer who can skip things like refrigeration during transport since they are only servicing themselves... and often don't think of those costs when considering the price of groceries since the purchase of things like gas for the car aren't directly related to the grocery purchase. I think all of this is why many grocery chains deliver out of traditional stores or offer pickup or why things like Instacart and the currier-like services have been more successful.