I agree... it is bizarre. Remember though a minor is someone under age 18... I am skeptical that conversion therapy is being done on 6 year olds... but a confused 16 or 17 yo might be different. My guess is the gay lobby knows that the pre-teen and teen years are prime years in their recruiting efforts and professional intervention that would help turn a teen away from the gay lifestyle must be made illegal.
You are exactly right. Teenage years can be confusing and gay activists clearly are interested in trapping as many young people who are exposed to an often unatural level of sexual stimuli in the culture and through inappropriate exposure to pornography etc in the idea that they are gay and must act on those desires or they will not be happy. Below is a typical link.
http://kidshealth.org/teen/sexual_health/guys/sexual_orientation.html