Experts say that children ages nine and up should drink at least 2 liters of fluids a day. With this said it is important to ensure that your kids are drinking fluids and this may mean doing a little research. You may be doing more harm then good when handing them a soda or sports drink. Getting them to drink plain water may be near impossible, and with experts saying that chocolate milk is the new go to for sports recovery drinks both you and your kids can win the dehydration battle.