Just realize this ride is not based on the Disney dinosaur movie, it's more like Jurassic Park where the dinos are mean and trying to get you! I think a lot of first timers are confused by that and think the dinos will be cute and friendly, not so! The ride is very dark, parts are in total darkness and the jeep thing is constantly jerking around and the noise level is beyond loud. Many chilren are sensitive to loud noises and this ride can terrify them. Of all the rides in WDW, you will see more crying, scared children here than anywhere else. You just have to make your own decision based on how your kids re-act to instense situations, loud noises, darkness, etc. My son rode beginning at 4, but then did not want to ride the last couple of trips to AK.