Why do people judge me like this ?

So i generally observe people first impressions on me are..they ASSUME by first look

1.i am introvert

2.i seem innocent/or someone who can easily played of.

3.they imagine that I don't go outside often..like bayata tiragali they say

But irl or I am completely not this..I am ofc like most people ambivert

I am not someone who can be easily played off or get cheated of..they think I am amaykudu..lol..

Why do they judge me like this?