This is already a thing: quality of service (QoS). Your router looks at the protocols and decides who gets priority when sending or dropping packets. Your ISP

This is already a thing: quality of service (QoS). Your router looks at the protocols and decides who gets priority when sending or dropping packets. Your ISP does it. Etc. The reason to leave it up to the end user is because the manufacturer can’t know what a class of device truly represents: My rPi might be monitoring temperature in the boiler room so either the rPi can report itself as a priority device (current situation) or we need some way to know ahead of time “this temperature sensor monitors boilers” and “this temperature sensor monitors back door gardens”. https://en.wikipedia.org/wiki/Quality_of_service https://en.wikipedia.org/wiki/Quality_of_service Same thing with permissions. My firewall is aware my computers and my IOT are different classes of things because I put them on different VLANs. There’s rules about who can talk to who and what they can say. https://en.wikipedia.org/wiki/Virtual_LAN https://en.wikipedia.org/wiki/Virtual_LAN It could all be done better - my point is you have the right idea because it already exists (to various degrees).