Grocery delivery has been a great help, and I think probably makes more sense in general, but definitely so in cities/downtowns.
Still, I can get most, if not all, shopping for one done with a backpack and two feet. I don’t think it would be that different with a small family, and you can reasonably recruit family members to help. Growing up, my mom would take me shopping and I was always desperate to help (or “help” in the case of wanting to push the carriage). I think most kids at least start out this way and would be happy to carry a few bags assuming the journey isn’t too arduous, and it will make them healthier than spending that time with the PlayStation.
For me, the closest retail of any value is right around 3 miles each way. Not a convenient walk if wanting to buy more than a backpack's worth. I picked up an eBike, and now I can get there just as fast as if I had a car. I tried the grocery delivery for awhile. It was great at first until they all switched to Instacart, and now it's more expensive and less quality service. This was the main factor in deciding on getting an eBike to just stop using Instacart.
Still, I can get most, if not all, shopping for one done with a backpack and two feet. I don’t think it would be that different with a small family, and you can reasonably recruit family members to help. Growing up, my mom would take me shopping and I was always desperate to help (or “help” in the case of wanting to push the carriage). I think most kids at least start out this way and would be happy to carry a few bags assuming the journey isn’t too arduous, and it will make them healthier than spending that time with the PlayStation.