Central ideas are always complete statements. Anxiety is not a complete statement therefore it is not an example of a central idea.
Teeters my dude, It's.......Teeters......
Justice, honesty, courage, empathy
Young people have a better ability to initiate a positive change in their communities. They have better technology. They could use technology to grow and expand and build up their communities.
One issue revolving child exploitation is the use of marketing fast food restaurants towards children. It uses them to gain wealth.