I can see where a younger/noob rider might struggle with toeclips, since they're not so commonplace anymore. 20-30 years ago that's what people used, myself included. Getting used to SPD's was the adjustment for me. I ride both, and each have their advantages on either a fixed or road bike. Commuting and casual rides, I use toeclips so I don't have to wear a cycling shoe. Longer or faster, clipless is better, but only because of the shoes. I wouldn't ride fixed without one or the other (and a brake!) and someone who can't get their feet in/out of their choice of "retention system" is not ready for the extra challenge of a fixed gear bike, let alone riding in traffic. But it ain't rocket science, it's an easily learn-able skill.