Sorry for being off-topic, but the utterly lacking IPv6 availability (still!) annoys me so much. I know IPv6. I can route it. I can setup networks with it. And

Sorry for being off-topic, but the utterly lacking IPv6 availability (still!) annoys me so much. I know IPv6. I can route it. I can setup networks with it. And my ISP supports it, but just kinda. For some arcane reason, it only supports it for some types of transport. Got Cable/Coax internet? Great! You get IPv6 and a subnet too! Got Fiber to the Home? You get IPv4. And no subnet. I'm in the latter segment, and I just don't get it. The ISP in question is Telia, a pretty big ISP in Scandinavia. If someone in the know-how could tell me at least why they're doing things like this, that might offer some mental consolation.