People who behave like this usually have an underlying psychological problem. Obsessive gaming is an avoidance mechanism that allows a person to avoid negative emotion caused by real-life responsibilities and interactions.
How best to handle this depends on the individuals involved. Some people go through a phase where they need to figure this stuff out for themselves; it's just part of their growing up. Others could use a push. Still others benefit from harsh discipline.
Because your child is 19 and no longer a minor, I would say you have passed the stage of harsh discipline. So some combination of pushing and patience are called for. How exactly you go about this is complicated but I would try pushing a bit and see where things go. Have some hard conversations about school, the internship, how your kid is feeling. They'll probably be unwilling to open up but keep at it, at least a little bit. Consider getting a professional involved if your child is unwilling to talk to you but willing to talk to a shrink. If there's absolutely no openness, don't push too hard.
Finally, remember that it's okay to be figuring this stuff out at 19. Bad grades aren't the end of the world and people who waste their time in college (I did) can still become happy adults with good jobs. People grow up at different rates.
How best to handle this depends on the individuals involved. Some people go through a phase where they need to figure this stuff out for themselves; it's just part of their growing up. Others could use a push. Still others benefit from harsh discipline.
Because your child is 19 and no longer a minor, I would say you have passed the stage of harsh discipline. So some combination of pushing and patience are called for. How exactly you go about this is complicated but I would try pushing a bit and see where things go. Have some hard conversations about school, the internship, how your kid is feeling. They'll probably be unwilling to open up but keep at it, at least a little bit. Consider getting a professional involved if your child is unwilling to talk to you but willing to talk to a shrink. If there's absolutely no openness, don't push too hard.
Finally, remember that it's okay to be figuring this stuff out at 19. Bad grades aren't the end of the world and people who waste their time in college (I did) can still become happy adults with good jobs. People grow up at different rates.