Personally I dont have an issue of anyone wanting to learn or gain experience in photography. We all started off somewhere.
I think what causes the biggest issue for a lot of photographers is when a novice makes a post (such as this) in an area where they (pros) are trying to gain a foot hold and make a buck.
Carrie, you may have no issues with the local barflies getting what they can at the bars. They are of no concern because they are no threat. If those same girls started posting ads for free services right next to yours, things would be a little different.
Granted, they may not have the talents that you do nor will the client get the same service. He will on the other hand get the same result... release.
With photographers... the client will not get the same service or product but in the end will get new images. The quality may be questionable pending the shooter but they are new and current and will be used.
In both cases here is what happens- a potential client is taken off the market for a period of time costing someone revenue.
My suggestion for new photographers has always been and always will be this:
You have family and friends. Wear them out. Once they no longer wanna play model, then hire professional models or work TF* with them. Once you have your skills down then tell everyone else to step aside cause you're coming through!