You have to love these old threads.
When my Dad bought me my first deer rifle when I was twelve, I never even heard the term "length of pull". However, with that first 30/30, I could hit a gnat right between the eyes at 100 yards if it wasn't flying to fast. Then, the next year, when we moved up to the 30.06, he just bought it, scoped it and brought me to the range. Now with the 30.06, I could hit the gnat right between the eyes, no mater how fast it was flying. That's the way I remember it. One thing I remember for sure, my Dad didn't act like he was worried, weird or indecisive. He bought me the gun and taught me how to shoot it.