According to a quiz made in 2012 the main children and teenagers issues are:
“What they will do when they finish the school”: they really think about that and they are also worried about find “their life purpose”.
“Time to do what they like to do”: some teenagers are very busy at school and later at home doing homework and helping in the house. So they need to rest and enjoy some free time.
“Their physical appearance”: teenagers want to look good, good close, a nice body, etc.
“Their weight and height”: they are worried about looking good so they are careful about keep a healthy diet.