Some sports have highly elaborate and complex rules which govern every aspect of the process.
Apart from match fishing perhaps, angling is not generally like this. Most anglers like to get away from the crowds to be alone, or with a select company of friends, and to enjoy the fishing, the birdwatching, the wildlife and the whole ambience of angling. The Code of Conduct you have before you is angling's best attempt yet to help inform anglers as to how they should behave. It is not a 'dictat' from some non-angling body interfering with our sport, but is entirely angler inspired. Herein lies its strength and authority.