Older daughters are often forced to be third parents for their younger siblings. Many parents have more kids than they can reasonably care for, putting excessive pressure on their older children during their teenage years. Teenagers already go through enough stress, trauma, and anxiety without the element of rearing children. They didn't ask to be parents, yet they are forced to perform that role as if it's their duty. Redditor u/Dangerous-Host9819 is one of those eldest daughters. Her mother e…