Comment by sudobash1
I remember coaster brakes fondly. As an American kid, all of my bikes had them. What was great about them was that you can engage them so suddenly and forcefully that you instantly lock the rear wheel. If you did that on wet asphalt at high speed and jerk the bike just right, you could spin the bike around 180 degrees or more. It was a great day when I (accidentally) found that out. You can also do that somewhat on dry pavement, but your rear wheel is going to have a reduced lifespan.
I think that coaster breaks (and maybe steel frames) are better suited to kids who want to be rough with their bike. My wheels were never very true, and they would have rubbed awfully with rim breaks. (Disk breaks were unheard of on kids bikes then, and I think are still pretty rare now.) The main downside is that if you loose the chain, you loose all breaking power. That happened once to me, but thankfully there was a nice dirt ditch close at hand.
I prayed for long stretches of dry days during the summer when I was a kid, because we had a tree-lined trail with an incline leading to a back field. The trees were such that there was little to no grass on the house side of the trail, so when it dried up nice it would become dusty and loose. My siblings and I would spend all day taking turns ripping down that trail then locking up the brakes to go sliding into the dirt patch, sending up dust clouds and competing to see who could make the biggest.
We kept this up into our teens (bc we were rural way outside of town and our parents were luddites about the internet so we had little else to do after playing all our video games to death) and I got to the point I could drift down the latter portion of the trail and right the bike and ride away without touching the ground. I had moved on to a regular "mountain" bike by my teens so I had to tighten my rear brake and true my wheel so it didn't rub to get enough stopping force to lock out the rear wheel. At one point I was using that move as a core workout lol. (That and side flips on the trampoline.)