I'm older than you by about 20 years. All I know is at the office which spans 100s of people from jr analyst/marketing assistant new grads all the way up to VPs and CEO, there are zero people in all my companies that looks retarded in terms of hair, hair colour, tattoos everywhere, face piercings, crazy political people, dress code etc....
The most I've ever seen is ONE SINGLE woman some reason temporarily do a blue or pink streak of hair for a month instead of her normal brown hair. Nice person and all, but known to have a bit of attitude, got fired eventually and has a lower end job on the floor. So not surprised. As for dress, occasionally some people try to stretch the casual Fridays to walk in with sandals (nobody has ever been bold enough to walk in with shorts) and they get warned. Next time wear closed toe shoes of some kind.
Who knows. Maybe there's a bunch of people who get messy and put on nose piercings when they get home or on weekends. But I've never seen that shit in over 25 years working at various companies.
And, I dont even work at banks or any of those money kind of companies. And I know people who work there including a really good buddy I've known for 15+ years whose a VP. You know what he said? They'd never hire a weird person like that. And if he ever hired one and was in a big meeting the even higher ups saw that's who he hired to represent the company involving people and company's big money, he probably get asked to fire them. Nobody is going to take a bank seriously with their money who has tattoos everywhere with blue hair. That's why any kind of company like that (walk into a bank for example), people look and act professional. You dont have to wear suit and ties being a bank teller or the guy you sit down with to open a chequing account, but at least be pretty presentable like you care.
A person acting and looking weird is a CLM..... Career Limiting Move. Getting hired that way is hard enough. Making it far is even harder. And so many of those people wonder why they dont have great jobs making good money.
For those of you who are young and havent worked in the corporate office kind of setting yet (but might one day), just remember CLM. It's hard enough to get promotions or good jobs for anyone. When it comes time for a company to promote, they'll definitely skew to the more prim and proper people than a nose studder with half a shaved head. That's just how life works.