I wonder why still so huge % of daily sales (like food) are done in supermarkets insted of online shops? There are only few in my country but they give option to deliver all type of food to your home.

If you think for a minute how long it takes to:

1. Make a list of purchase
2. Get out of home
3. Drive to the market
4. Find stuff on shelves
5. Put them all to the shop basket
6. Wait in the queue (nightmare)
7. Get all stuff from basket to be scanned and pay
8. Get the stuff back to basket
9. Go to you car and get stuff again from basket to your car
10. Drive back home
11. Get all stuff from car to your home

When you consider online steps it's ultra fast:

1. Click what you want to buy (you can better compare prices and all those market tricks with music aren't working here). You can even schedule delivery.
2. Wait for the stuff at your doorstep and pay there
   3, The stuff is already here.

So for the additional few $ you spare your time of driving, gasoline cost, you buy what you need and save enormous time needed to find products in the market, as they like to change everything very often adn also in the queue.