Preconceived notions

Don't we all have preconceived notions? I admit, I do. In fact all of us presume something or the other about a certain person or situation or a thing. It's not that bad. It is human nature. But you know we need to draw a line. We need to stop assuming and make so many judgements even before knowing a certain thing. We see a person all smiling and cheerful and assume the person to be the happiest person alive. That's completely fine. But moving a step forward and saying that the person who smiles a lot cannot have any pain, that's preconceived notion! May be that person is just emotionally strong and deals with pain and pressure easily. That does not mean the person has a perfect life. Why do we assume these things.
When a girl dresses up really well, the girl is termed high maintenance. What if the things she is wearing is thrifted and not as expensive as you think. Just because a girl is wearing Western clothes, we assume that she is spoilt, bad and isn't homely. This is just ridiculous! When will we think beyond this? When will we start accepting things the way they are and not assume things.
A recent incident in my life made me think this. I never knew facebook account could be used as your character certificate. This is just absurd and these things just irritate me. When will people mature and understand that its not always what you see. It may be the things you haven't seen!

Be positive guys. There is already so much negativity in the world. Spread happiness and positive energy. Sayonara.