Well, I was actually gonna ask how people pull film off reels, but I came upon this reincarnated thread.
I have Paterson reels. I take them apart to unload film because I've never been able to convince the film to unspool. Always feels like it's catching on something.
And, yes, my reels are a pain to pull apart, too. That's not good, because they often come apart with a violence that can damage wet film. If there was money to be made with such things, someone might have designed plastic reels with a simplified release mechanism.
To make matters worse, I could never load film on a steel reel correctly. But, a few days ago I picked up a steel reel yet again, vowing to master it. This time I rested the reel on a hard surface, feeding the film with one hand and rotating the reel with the other. Works pretty good. Maybe that's considered using training wheels, but c'est la vie.