I can’t find info on CB use but this should explain a few things regarding mobile phone use.
https://www.vicroads.vic.gov.au/safe...es-and-driving
The use of a CB/2 way radio is far less distracting compared to a mobile phone.
As for looking away to find the mic, don’t forget most people that use a CB spend 8+ hours a day sitting in the same seat with the same surroundings. Any driver that has to take his eyes off the road to find a mic should hand his licence in, Ive been there done that.