Are you entitled to an opinion?

I believe that you are entitled to your own opinion because not everyone thinks the same way. For example, I can think that a certain music artist is not good but a peer of mine may  think otherwise. Now is there anything wrong with that? No. Although you are entitled to your own opinion, you should not use that when you disagree with someone on a certain topic. Why? Well because using that does not get you anywhere. It doesn’t give any evidence as to why you’re right and the other person is wrong. Simply just gives you something irrelevant to say.