Keep in mind that although there may not be a height restriction on a ride, it doesn't necessarily mean it's appropriate for your 2 year old and 9 month old. For example, I know my 2 year old and 4 year old would be scared on Pirates of the Caribbean and the Haunted Mansion, but if I give them a keychain light they can go on some of the other dark rides i.e. Journey into Imagination) & feel a little more secure without really bothering other guests with bright flashlights or crying. You know your kids and what they would/wouldn't be comfortable with. Enjoy your visit and cherish these moments with your little ones!