I agree that long hair in the workplace needs to be appropriate for the circumstances, nothing loose if near machinery purely for safety sake regardless of sex. Personally, my hair grows very fast. I am currently 62. 14 years ago I met a young woman with alopecia. I don't color or perm my hair as my hair is thick and heavy as well as fast growing. (yes, I know it sounds like bragging, but it can be a huge pain when you think of doing all of that maintenance as well as the every two week cost of it). I finally figured out what I could do with all of that hair - donate for children/chemo survivor's wigs. As a result I was able to donate quite a bit: 2008, 2010, 2012, 2015, 2018. Last fall I finally broke my tradition of donating on 3/20 (my mother's birthday - she died of cancer) and had it styled into a short style. Fortunately for me, the stylist knew what she was doing and the 5 inches it has grown since the last cut have been fairly uniform - thankfully. My hair color resembles that of Lily Muenster - the white streak at the crown of the head - bright white, but dark blonde not black original color. the salt has certainly taken over, but the thickness hasn't diminished. I have no problem letting my hair grow in its natural color. I have been officially disabled since 2017 but it doesn't seem to interfere as much as it could with my hair - thankfully. When I worked full time (office work - paralegal) I would be regularly stopped by strangers to compliment my hair, clients would remember me because of its distinction and babies/kids would be fascinated. It worked for me in a lot of positive ways.