A surgeon general's warning on social media wouldn't be as powerful as good-old-fashioned parenting, experts say

• The US surgeon general wants to attach an official government warning to social media platforms.
• But social media experts are mixed on how whether a warning could help curb kids' mental health woes.
• Parents can and should play a massive role in teaching their kids how to stay safe online. 

The US surgeon general on Monday proposed a bold new step in fighting social media's negative effects on children, suggesting the government affix social media platforms with a surgeon general's warning about the inherent risks of being too online.