The main value of 5G as opposed to WiFi is that it comes with an entire system for roaming over different networks. WiFi has no built-in system for authenticat

The main value of 5G as opposed to WiFi is that it comes with an entire system for roaming over different networks. WiFi has no built-in system for authentication across different operators, no system for accounting usage, no system for ensuring trust. This is what 3gpp brings. Their systems are hopelessly convoluted, and have some issues. However, it works.