It's like working in high heels or in combat boots if you're a sever at a restaurant. It's just impractical and doesn't take any advanced form of knowledge to figure that out.
An aside: I have worked as a server in a restaurant, and "combat boots" (US Military issue, the ones that every soldier buys boots better than with his first paycheck) were the most comfortable shoes I ever wore in that job.
In fact, I went from being a sneaker person to wearing those boots at work all the time.
Agree about the high-heels, though. Not practical footwear for someone who's going to spend hours on their feet.
How about sneakers in a kitchen: sounds like a good idea, until you realize that rubber soles + grease = slipperier than almost any alternative.