Figure skates are designed for graceful controlled movement with a higher centre of gravity (good posture, upright torso) and anticipated changes of direction. Hockey skates are designed for quick violent unpredictable changes in direction with a lower centre of gravity. So figure skate blades have less rocker to "lock" you into your glide / edge. They have an extended tail end to allow you to stand up tall with a flat back and not fall over backwards. And they have a toe pick to allow you to jump and land. All of the above make them far from ideal for hockey where agility and quick, violent unanticipated changes of direction are key. In a hockey environment, he's sure to fall on his face due to the toe picks. Hockey skates have no toe picks and no tail end. They are shaped just like the rocker on a rocking chair, so you can move very quickly in any direction. Aside from that, the other kids might make fun of him.