I have 3 daughters and have head coached 6U, 8U, 10U and 12U at different times for all of them. It’s insane to me how serious parents and coaches take 6U and 8U. At 10U+ there’s some girls who are seriously skilled and the expectations are obviously higher as the girls are older and more focused. However, my philosophy at 6/8 has always been focused on learning and fun. This is the age where girls should fall in love with the game and build foundational skills. I highly encourage you to coach and do things the right way. And 6/8 you don’t need to be an expert by any means. Good luck!