Bad Habits

[Master]

My line manager hates coloured shirts with white collars for some reason.

Subconsciously they remind him he can wear any colour he likes but will always be a white collar worker?

He is a vegan and is against Zoos, I think he tries to represent the vulnerable but is a complete twat to his workers.

I have a pink one with white collars and cuffs, and a similar grey one, really like them. I also get told off for long sideburns and my hair being too long

What decade do you think it is mate?