Free: Contests & Raffles.
I always carried the 22 rifle when I was younger, I know it is a different time now.
I worked hunters with wardens for a lot of years, and often encountered young 'uns in the field with bows, BB guns etc. It was never an issue with enforcement, always had a good time encouraging and congratulating the kids for being out with the family and starting a family tradition. That said, an officer I worked with did cite a dad for accessory, for having his kid shoot two grouse with his BB gun while the dad (the kid hadn't taken hunter safety, and didn't have a license). He dealt kindly with the kid, explaining why he needed to take hunter sfatey and have a license before hunting; the dad was pissed, but I think the officer made a good call.