Anyone who eats a marijuana edible, especially a child, can experience overdose effects. New Canadian study found nine times more emergency room visits per month for cannabis poisonings in children under the age of 10. 

Resources

https://www.healthychildren.org/English/ages-stages/teen/substance-abuse/Pages/Edible-Marijuana-Dangers.aspx

https://www.eurekalert.org/news-releases/939301