Stupid advice given from one who is obviously already brainwashed.
The 12 year old is to listen to the parent, not the other way around. This is a traditional Catholic forum, not a public elementary school.
If you don't listen to the symptoms you can't find a cure. Something is seriously wrong in this girl's life and her parents need to figure out what it is. At her age the evil influence is almost certainly a relative, a family friend or someone at school. If the parents don't listen how are they going to discover the source? When my aunt was 17 she thought she was a lesbian. Instead of dealing with the adult family friend who seduced her all the pressure was on my aunt who ran away and except for the occasional appearance she never came home again until she was in her 60s and dying. A lot of stuff can be nipped in the bud depending on how parent handles it. Stephen King ( a terrible human being) admits that his daughter is a lesbian today because he was intoxicated for her entire childhood. What was it like growing up with a mean drunk who was also living on cocaine? Had he behaved like a man, his daughter would not have had her mind poisoned and would not have turned to a "kindly" older woman who seemed to her to be helping her deal with her horrible home life.