Are parents responsible for adult children's medical bills if they live at home?

In general, parents are not legally responsible for their adult children's medical bills, even if the adult children live at home. Once a child reaches the age of majority, typically 18 in many places, they are considered financially independent. However, some exceptions may apply, such as if the adult child is disabled or if there are specific agreements in place. It's always best to consult with a legal expert for individual circumstances.