I have met a lot of young people who don’t have a clear opinion about any subject. That can lead to you drifting around in the world with no purpose and you can also be more easily manipulated. Religion, politics, kids, marriage, environment, you name it: Figure out your opinions.
And I’m not saying you should become too attached with your opinion and not listen to others. But at least if anyone asks about your opinion you will be able to calmly form a sentence instead of pretending that you didn’t listen to them to avoid the embarrassment.