I just read the article "To Young To Run?" by Scholastic News. This article discusses about how people disagree about if kids should run marathons or not.
I believe kids are still healthy when they run the marathons. "Heather and Kaytlynn Welsch are regularly checked with their own doctors, who say they're in good health."(page 4) I also feel that kids have goals of running. "Kaytlynn and Heather say their goal is to run in the Olympics one day." (page 4) My last reason is that some kids like to run. "The Welsch sisters say it's unfair to criticize them, especially when many kids rarely exercise at all."(page 5)
Some may argue that sometimes kids running marathons could be dangerous, I would tell them that many kids get healthier when they run. Some might also believe that some kids don't like to run, and I would say kid shouldn't be forced to run. They may also say that some kids are pushing to far in running, but I would tell them that kids should try to met their goals and that includes challenging themselves to push more.
All in all I think kids should be able to run in marathons.