In that case maybe we should let the kiddies watch inmates get executed too? You know the cycle of life and death. That's certainly a valuable teaching experience for everyone. And who knows when school children may need to dress a dead giraffe, instead of just telling them what lions eat, versus showing them.

Don't children deserve to know that lions aren't vegans?

Heavens forbid they think that, and start getting some really crazy ideas!
But please no "graphic" sex education in our schools, because you know, priorities.