Lots of things are illegal now that weren't illegal 60 years ago. I had a goose hunting buddy back then, and we were upset that the geese were flying too high, so we went to the local farm store, bought a case of dynamite, dug a hole, put a 55 gallon drum in the hole, packed dirt around the drum, put the dynamite in the bottom of the hole, and filled the barrel with pea gravel. We backed off 100 yards with a car battery and when the geese flow over, BOOM!
The geese flew off, and we blew a big hole in my dad's field. I was out there all winter with a shovel and wheelbarrow filling the hole back in. The nearest house was a mile away, so there wasn't any danger to anyone. When you start packing people together, they start making laws.
Nowadays they wouldn't sell dynamite to a 16 year old, and if a kid managed to get their hands on some they would end up indicted on a federal rap.
It used to be legal to feed a loudmouth a knuckle sandwich too.
Did you ever tape up the seams on a big cardboard box, dribble in a little acetylene, and touch a fuse to it? Wonderful stuff, acetylene, explosive from 5% to 95% with air. A big farm had a repair shop where somebody left an acetylene torch leaking, until the heat kicked on about midnight. They found pieces of that shop 1/4 mile away.