Chastity and orgasm denial discussion

Hello! I’m back into chastity belt (CB) life, and I gave it a quick test since my girlfriend left the key at home for emergencies. I managed to pull my penis out of the cage: it was quite easy, even with the scrotum involved, no issues there. I knew it could be done but hadn’t tested it before; perhaps I was afraid to open Pandora’s box! Getting everything back into position was a bit fiddly, though I’m confident it can work with some patience. So here is my query: Can anyone else do this, or did I just happen to use the right rings/spacers? In my opinion, even with the tiniest ones, it’s still feasible. So what exactly is the point of wearing one? I know there are anti-pullout mechanisms available. Do they actually work physically, or is it mostly a mental block rather than real security?