Nakumatt couldn't do it. Retail business is one of lowest margins, low barrier to entry businesses. That why you see retail giants go broke like a pack of dominoes. However, we have Sam Walton the Founder of Walmart. He has beaten all odds to have founded one of the most successful retail businesses in the world. Before 2nd world War America landscape was dominated by small businesses. It was a informal economy. After WWII American entrepreneurs went all out. I bet when you survive a war no risk is scary. Sam Walton was a genius.
Here is a good summary of his biography. A man that should emulated and,NOT castigated. his a god of retail. I thought his expansion in early 2000s was going to bankrupt Walmart but I was wrong.
Only Bezos can end Sam's Reign but he won't
As Kenya goes thru retail formalization think big. Think low cost operations, high volume, fully automated retail. If you do a Dukawalla type of retail you will go home broke and dejected. Take Walmart recipe and tweak for Kenyan environment. Build something to last 300 years.
Here are stats about Walmart
$599 billion in sales
2.2 million employees
Average wage per employee is #14.26 /hr