Why has hockey been somewhat slow to catch on at the high school level?

Because this sport requires a lot of things from high schools and students.

Explanation:

High schools generally have a limited budget for sports which makes rockey's offer difficult at these schools. This is because this sport requires certain equipment. Such equipment is very expensive and would make school expenses increase at a significant level.

In addition, students who study high school are teenagers and hockey is a contact sport that can cause injuries in athletes. Because schools are responsible for the safety and well-being of students in the class period, parents could be furious if their children came home injured from hockey.