make a law that will force parent to be more responsible for what kind of video games they buy their child

I feel as a adult and video game player that it should be illegal for a child to be playing rated M (mature 17+) games and be online talking about sex, drugs and violence... i feel the parent should be held on child endangerment based on a. Knowingly acts in a manner that creates a substantial risk to a child or minor's
physical, mental or emotional health or safety. ... i feel that if it is enforced that this will help with the mental illness that has been on the rise for a long time.