“Democracy and rights advocate Reset Australia set up test advertising campaigns to examine Facebook’s reach of young audiences and how it compares to what is on offer with adult audiences.
“The group says they found little difference, with Facebook giving them the option to target users as young as 13 based on their ‘interest’ in things like smoking, gambling, alcohol or extreme weight loss.”
https://www.inkl.com/news/facebook-tracks-teenagers-for-alcohol-gambling-report?share=qGRPQmfMLpM