There’s a difference between sharing opinions and being overly critical. It’s easy to sit in judgment of others. Be well informed before giving your opinion.
Opinions can be shared to help, not harm. Being the expert in someone’s life is a dangerous responsibility. Once you get into “They should say and do this and that,” then you should be able to predict and deter them in harmful acts. Are you ready to be the expert of all people’s thoughts and actions, or do you think you want to try being the expert in your own life?