Dear people on Food Stamps: Why do you shop at Wal-Mart?

I recently found out how much EBT money people get. And I noticed at Whole Foods (Fancy and Healthy Grocery store) that they accept EBT cards. So we budget out the money and my family spends less than the EBT allowance that other people qualify for. And we mostly have to shop at Wal-Mart. What I don't understand is, how you people on Food Stamps shopat Wal-Mart. You get free food, so go to the real grocery store. And why do you buy the crappy bread? I would be buying that vermont bread with like 100 grams of fiber that costs liek $5 a loaf. Instead you buy wonderbread, what the crap?