I am not agree with it

I always dress up when I going out in public, no matter my clothings are from fast fashion or some decent fashion brand, I will not wear that like in the right side.

I think dress properly is my attitude to showing respect for others.

Therefore, I am very upset when I see this pic send from my best friend, she thinks me is a poor people.

Do you agree with it?

And do you think wear decent is necessary?