There are many methods to train FF, these are some good examples. There will be a dog here and there that won't need it, but most do. Doc was one year when I started him on FF and it took ten minutes before I had to quit for the day, he just wouldn't do it. The next day he was a differant dog, fetched it, held it, and gave it. Never had to use preasure again. And this is what realy finished him, he was a machine after that. He was killed by a drunk driver last summer, so I am starting over with a Black Lab who is at one year right now, and this is a totaly differant dog and doesn't respond well to preasure so I am realy having to take my time with him, but he is doing everything else well. At 18 months Doc was finished, this Black dog, I don't know how long it will take, and I'm not sure I can get him to where I had doc or not. But he is being forced, if you don't do it, I don't think you will ever have a finished dog.
This is Doc at 1yr holding for pic.
This is Doc at two.