Mumsy, that is good thought when it comes to breeding/culling.
At some point, if I keep going the way I am, I'd separate the layers from those that I wanted to breed and proceed from there.
In the meantime, this girl with the feathers is a hatchery ee that lays the largest eggs in the whole flock. They weigh out at "jumbo" size in ounces per egg. She is definitely a good layer and even if I didn't breed her for future genetics, I'd surely keep her for egg laying.
You're right - sometimes people give advice that they try to apply to everyone...but
different folks have different goals.
-LW has a good bunch of layers the run with the roosters. They lay and produce what's needed. They're like the old fashioned farm flock.
-Then there are the folks that are breeding for standard conformation and to sell offspring. A whole different set of rules and variables and list of what makes them valuable.
-Some have the old fashioned farm flock then decide to breed/cull for other things such as egg size and numbers, overall good health, feed efficiency, etc. etc. etc.
-Others just purchase new chicks from time to time and will never breed but will raise meat/eggs from those chicks. They replace them from the hatchery or breeders as needed.
You just have to figure out what your goals are and go from there.
I have hens that are a value to me in producing eggs for eating. Then I'm beginning a little flock of birds of a breed I want to breed for myself as a closed flock - and to perhaps sell fertilized eggs or chicks sometime off into the future. These 2 groups will be treated differently in what I'd find valuable