The home in which a person grows up could have influence of drug use. as researchers looked at drug and alcohol use in genetic twins who had been raised in different homes. Those who grew up in homes that were impact of divorce and mental illness, and those who grew up in homes where drugs and alcohol , were more likely to become bad people when they grew up. It’s possible that living in homes like this causes such intense stress that using drugs seems like a reasonable solution, but it’s also possible that growing up in a home like this drug abuse. As the child grows and sees parents abusing substances, that child learns to also abuse substances.