Well I have now, and at school in Fiji there were stories of other kids blowing themselves up with homemade kerosene & bamboo fireworks. My personal opinion is that responsibility and risk are related, and if you don't have a gradual increase of both in a relatively safe environment while growing up you are more likely to wrap your sports car around a traffic light (for example) once you finally experience 100% of both at once.

Of course everyone has different opinions of what an acceptable level of risk is.