People getting judged by how they look <3 My brother is in a wheelchair, and a lot of people judge him on that. More teenagers and adults than anyone, people that are younger and people that are older don't care <3
Ideally the topic would be something you feel strongly about. If you are passionate on a topic it tends to come through in your writing and people are more likely to be swayed by your opinion. Since you gave no information on the type of essay, here are a few sample topics: why it is good to adopt a shelter pet, why the drinking age should/shouldn't be lowered, why the driving age should/shouldn't be raised, and why homework is useful/not useful.