I don’t think you understand me.
Both the initial starting zone (let’s say Elywnn Forrest) and capital city (Stormwind) can be fished at skill level 1 of fishing. Elywnn has a minimum skill requirement of less than skill 1 and a skill required to prevent “get aways” of 25 skill. Stormwind also has a minimum skill requirement of less than 1 but a skill required to prevent “get aways” of 75.
A starting fisherman, in Elywnn Forest, will have one or two fish get away before reaching skill level 25 (where he is going to catch 100% of the fish that bite). A starting fisherman, in Stormwind, will have many fish “get away” greatly slowing down his progress.
Yes, there is a minimum skill to cast, but that number is less than 1 until you get to Westfall. (I am using all human zones for simplicity).
In retail, you do not have “get aways”. However, the lures have be depreciated along with the changes of skill, and it is not possible for a beginning fisherman in Elywnn Forest to use a lure and prevent catching junk (the modern equivalent of getting away).