Coloring your hair as a student can get you in deep shit. Someone invented a temporary black hair dye for this, which I found bizarre until this was explained to me.
Tech? Please don't make me laugh. Working at MSFT for a while, I've seen plenty of people in-person (even in management) with visible massive tattoos (even one with full neck covered in ink), piercings, and I am not gonna even start on wild hair styles and colors. One of the very senior people I've gotten a chance to work with had her hair color being split in half right down the middle - half black half white (ala Cruella from Disney's 101 Dalmatians). And mind you, out of all the big tech companies, MSFT is one of those that imo skews a bit of an older crowd, so I don't doubt this kind of stuff is even more common at places like FB.
One of my friends is a doctor in the deep south, and his arm is fully tattoed and is on open display at work (short sleeves). From my anecdotal experience, every time I go for an annual physical checkup with my primary doctor (in PNW), more than half of his nurse staff has either bright-colored hair or tons of tattoos (or, not uncommonly, both).
All of this is extremely acceptable in the US these days, barring few specific industries that still insist on ultrastrict "suit-and-tie" dress code and some rural areas. But in major cities? It would be impossible for me to walk through a block on the street without seeing at least one person with either neon-colored hair or very covered in ink or with tons of piercings.
But computers don't care. Not for your skin. Not for your hair. Not for your sexual preferences. Not for your gender. Computers don't care.
If you are "working with computers" and your colleagues are the "ones that care" to make your life hard. Then that is not a place I'd want to work. If society has this as an endemic issue, than that is not a place I want to live.
In Japan the equivalent is "The nail that sticks up gets hammered down".
Her dying her hair is ABSOLUTELY a large act of rebellion there.
Shouldn't we hire/want people in the field because they are passionate and want to be there rather than some arbitrary skin pigmentation or assigned gender?
I think you're underestimating the stigma against different hair colors in Japan. Japanese culture puts a heavy emphasis on not sticking out, to the point that even having a natural hair color that is different from the norm can be viewed as being rebellious.
https://www.businessinsider.com/japanese-students-hair-color...
https://soranews24.com/2019/08/03/tokyo-public-schools-will-...
Basically they’re just supporting women in tech
There are many careers (ones that require you to travel, ones that require lots of in-person onsite availability) that genuinely are really tough for young mothers, and it forces a classic feminism catch-22 on them; namely, an unpleasant need to make a choice between seeking fulfillment via having a career, versus seeking personal fulfillment via motherhood. It's just really unfair that one has to choose and can't just do both.
As it turns out, there are a lot of careers where you can have both with no problem; but there are others that are a bad fit. (For an example of a career that fits this really poorly, take truck driving.)
https://en.wikipedia.org/wiki/Emotive_conjugation
Bertrand Russell, who expounded the concept in 1948 on the BBC Radio programme The Brains Trust, cited the examples:
I am firm, you are obstinate, he is a pig-headed fool.
I am righteously indignant, you are annoyed, he is making a fuss over nothing.
I have reconsidered the matter, you have changed your mind, he has gone back on his word.
But the mass media portraying her as a rebel for coloring her hair, that's like... Tabloid stuff.