Strong disagree. If you haven't found an issue with something you love, or a useful aspect in something you hate, you need to experience more. I don't know if I'm senior other than doing this for a while, but I had more opinions when I was starting out than now. I do have more clear opinions now in terms of being able to say why something is important. But a great number of things (statement vague on purpose) people have strong opinions about are not really important.