From a 73 year old Australian country person... I grew up with rifles and shotguns being used as daily tools on the farm, so nothing was new and scary. My father started to teach me about the safety aspects probably in my 4th year, and I was given a Daisy Air for 4th birthday. Did the right thing with that and got a single shot Lithgow 22 for 5th. Went on from there, and in turn used roughly the same timing and progression for my son and 2 daughters. Country children take a very practical approach to learning about safe handling, a bit like hopping on a big tractor for the first time, very exciting, but pay attention to what you are doing!!
Most like the thought of shooting more than a 22, though some of the hard-kickers are not really a good idea .... I have a quite heavy 416 Taylor and have given it to a 12 year-old to shoot.... He thought about it for a few seconds after firing, then looked around and asked if he could have another one...!!! Grin went twice around him!! It is nothing like my 300 Weatherby which can hurt if not well held, it pushes.... For what it is worth!! Below is my son with our special "pre Mk5 Weatherby" in 300Wby Mag, with his first Buffalo.