The human young must learn to perceive these affordances, in some degree at least, but the young of some animals do not have time to learn the ones that are crucial for survival.
The Gong Show provided me with five years of the happiest times of my life, but that's that. And to be known as the guy who gave the world The Gong Show - listen, my Uncle George isn't known as anything. So I guess it isn't so bad in that context.