Self confessed fireworks nut here. Was introduced at age 4 by my brother-in-law, by the time I was 7 I was dropping lite M80's into a tube, top with an empty tin can and launch.
Fireworks were totally illegal in Iowa until recent years because of a fire started by fireworks burned down the entire business district of my home town in 1931.
BUT....South Dakota was only 90 miles away, road trip, and everything was available there.
Now that they are legal in Iowa I live in town so very limited in what I can shoot off. Dang it! Oh well, saves me a bunch of $$$.
I've never hurt myself or anyone around me. In my opinion, sparklers are the most dangerous, I won't buy them.