People can easily come up with an opinion on almost anything.
And two things are good to keep in mind.
First, opinions are opinions. They are more influenced by sentiment or feeling than reason. They are great ways to get started, but poor ways to get you across the finish line. The sooner you move from opinions to facts, the closer you will be to success.
Second, saying that you don’t have an opinion on a given topic is not a sign of weakness or dumbness. And most of all, it does not prevent you from taking action. Moving from opinions to facts is equally important when the opinions are not yours.