I found something quite ironic. The Kyokushin guys I was around all had the no gi outside the dojo rule. Yet, the Fighting Black Kings movie is full of guys wearing their gis while running out on the streets and various other training stuff. I’m pretty sure it was for the camera, but you never know. They were barefoot running out in the streets with their gis. Our rule is don’t wear it outside if you don’t have to. And if you have to, don’t wear your belt. Outside of demos and stuff like that anyway. It’s not a written rule anywhere that I’ve seen. There was an adult student who’d always show up in his gi with belt on. He got a couple of looks and shaking heads every now and then by us, but it never went any further than that that I know of. I’ve never had to wear mine outside the dojo. I only wear the pants out once a year on the way to our beach training because there’s no good place to change quickly. Edit: Actually, our dojo had some damage to it that resulted in no changing rooms (among other things) for several weeks. We were asked to wear our pants in and put our tops on when we got there. Some wore the top in too, which was fine, but no one wore their belt in. Edit 2: Kids come in already dressed in their gis and belts all the time. No one gives them a hard time. Truthfully, the adults rather that, as the changing rooms are quite small, and it’s just a bit awkward changing with the kids.