What would be an opposing/counter-argument of how it's hard being an adult? 4-5 sentences .

You could say:
Being an adult gives you freedom. It allows you to be your own person and chase you own dreams. You can go wherever you want to go without anyone telling you no!(lol that rhymed). As an adult you can do things you were never able to do as a child. Like wearing what you want to wear, buying a living space, and saying what you feel you should say.