It's certainly possible to pay alot for jeans, but it is by no means the norm for them to be expensive.
But it's not just jeans, it's all dress code restrictions that apply in situations where they don't or shouldn't matter.
Dress codes are ostensibly about the comfort level of your peers, but in actuality, they tend to be more about "who" they exclude rather than "what" they exclude... and are still about the "comfort" levels of the people that enforce them.
Other way around, Mayor always said it was terror, FBI originally said it wasn't. Well, one person from the FBI anyway.
The headline in your image "unclearly" states exactly that. FBI declares "not terrorism, -contradicting- Mayors statement".