To the average person on the street the dark root trend might be a little perplexing. In fact, when I mention to my "single process girls" that I have people coming in on a daily basis asking me to GIVE them dark roots the reaction is almost always ridiculous laughter. I mean, what are these young girls doing?
Lets explain a few things. First of all...it's not only young girls jumping on this trend. The farther we move away from traditional foiling towards painting/balayage the more accepted the look has become. With that fashion forward women of all ages have been asking for this look, not wanting to get left behind when it comes with their appearance. These are my kind of women. They're excited to try something new, and I love working with them.
Also, this trend isn't all that far out there. If you track recent color trends this is just an evolution from the extreme ombre of yesteryear. As hair painting became softer and softer it slowly climbed up the head as well. We're also more inclined to leave dark pieces between painted section. This provides a seamless transition from that dark root, while maintaining dimension of the bottom of the hair.
Dark roots are not for everyone. I've found that women who like to be BLONDE...like really blonde...will not like roots in any capacity. In fact, true blondes should probably stick to traditional foiled highlights. The whole point of painting/balayage is to be soft, sun kissed, and natural, not super blonde. I also don't think dark roots look particularly good on short hair. Anything above your chin, and it really just looks like a grown out single process.