Why is wearing sweatpants in public socially unacceptable/looked

The nine definitive rules for wearing sweatpants in public – New York Daily News

The Case Against Wearing Sweatpants in Public

No Sweatpants in Public: Inside the Rule Books for N.F.L. Cheerleaders - The New York Times

Why aren't pajama pants acceptable to wear in public but sweatpants are? - Quora

Can I wear sweatpants every day? - Quora

Can students wear sweatpants to school? - Quora

Do you think it is appropriate to wear sweatpants in public? What are the advantages and disadvantages of doing so? - Quora

How to wear sweatpants without looking like a slob - Quora

Can students wear sweatpants to school? - Quora

Should Men Wear Shorts? - Can Men Get Away With Shorts in the Workplace?

Can I wear sweatpants every day? - Quora

Is it ok to wear sweat pants in public? - Quora