Because they got called out, questioned about their reasoning, and had no good rebutle. Question everything, and show your sources.

My ex-wife was like this. Making snap decisions without planning 5 minutes ahead. She did this exact thing one time. Got a job at a gluten-free bakery. They told her she needs to wear a hat or hairnet, and would need to remove her long nails per local health code. She said no, and quit. Mind you, this was her first job in 6 months while I was supporting the household alone. She told me this was a boundary she had. Biggest. Bullshit. I’ve. Ever. Heard.