This is a pic of my 8 year old just prior to her first time successfully getting up on water skis.
Last summer she tried but couldn't coordinate her legs enough to get up. The fear factor was also an issue. Now, she is a year older, and we bought an inflatable assist called the Aqua Buddy to help her get up. It can be used for adults too (up to 225 lbs)
I highly recommend it for kids, and visitors who want to give the sport a try. It allows for immediate success, which is empowering and encouraging.