Critical thinking

If you want to check if something is really a fact, you should ask questions to the person that is declaring it about: clarity,  accuracy, precision, relevance, depth, breadth and logic of the argument, and if he doesn't know how to answer something, or you notice that he's just inventing again, you can know that it isn't something in what you can trust. If you have done this questions, congratulations! You are now a critical thinker!

Why do we need to be critical thinkers? If you have ever thought about this question, it means that you have, at least a little part in you that thinks critically! Nowadays it's something very important to criticize the things that are told to us, even if they are given as "facts". Many people talks as if they were experts, but they just invent information an tell it as if it was reliable.
Personally, I think that some adults consider that when children critize them, they are just being rude and that they should only agree what they hear. I couldn't be more against this position, because every single person has the rights to express his own ideas.