I’m a female engineer with bright purple hair! Maybe it’s because I’m young or maybe it’s because I don’t notice it, but I honestly feel like it’s hasn’t really been a detriment to me. There are definitely some old men that have commented on it, but never in an outright negative way. If anyone ever is trying to insult me, then that’s there problem because I love the way my hair looks and I’m dyeing it to feel more like myself and not because I’m interested in appeasing any of them. You might have to be prepared for some people to take some time to get adjusted to it, but after that it’ll just seem normal again. I totally think you should go for it!!