I am 30. I have shoulder length curly hair, I have recently had a side fringe cut in (I know, I know, I went against MN advice - it looks nice, really! when straight)
I was thinking of doing a dip dye, which I had as a teen BTW, I was trendy before my time, and dying red. I would position it (?) like blonde that has grown out, not just half blonde half dark 
I mentioned I was thinking of doing it at work, everyone said go for it, it'd look good etc - apart from one person. She has filled me with doubts and now I need MN to make a decision for me.
So come on. Tell me. So I can do it tomorrow 