I'm no expert but I do teach a group of kids . To me when kids are about 9 years old or so give are take 2 years either way . My nine year olds have better attention spand and Can really work on the correct form better!!!...but ya got make it fun ...more ballons the better, and First and most important safety and safe practices . Just pulling arrows no one behind the person puling out arrows , ( Trust me on that one , its something Im not too proud of my son was right behind me as I was pulling arrows he was 10 year old, missed his eye with nock on arrow) , thank goodness always always think safety!!!!rules learned make archery fun...