Some parents prefer single-gender school over co-ed schools, simply to reduce 'distractions' that might occur during the teenage years and eventually interfere with their studies. Some parents believed in it because they also noted that many of the top elite schools are single-gender schools.
On the other hand, some parents prefer co-ed schools as they wanted their children to socialise with the opposite gender so that they would not appear socially awkard when they are older.
So, what is your preferance?
Experiment #7 - Forces (Frictional Force)
Experiment #6 - Forces (Frictional Force)