When do you stop being responsible for your adult children’s medical problems? The US government says that once you turn 26, you can no longer use your parent’s health insurance, but not everyone stays on it for that long. I’ve had my own insurance since I was 22, and some people get forced off of their family’s plan the second they turn 18. College age is an ambiguous time for personal financial responsibility. There are 18-year-olds who are working and paying for literally every expense that they have and just making it by. In the same college town, there are 22-year-olds whose whole lives are financed by their parents, who spend hundreds of dollars at bars every weekend. Neither of these circumstances are inherently good or bad, but families need to decide how much financial responsibility they will take on for their college students who are technically adults, but not really.