If you weren't one of the less than 2% of the world's population and have naturally copper hair, there's some things to consider before you color your way there -
Reds have taken a hit for a long time for being soulless or ugly and that is likely because of the rarity of the color and the fact that most with red hair, have freaky pale skin and possibly tons of freckles.
My freckles are luckily a pale peach/nutmeg. My back is an utter freckle farm from lying belly down on rafts to avoid sun on my front.
Brunettes are often associated with being intelligent or exotic, self-assured, and forthright.
Redheads, however, are simply rarest. We cannot go unnoticed, have nothing to lose by being heard, say it like it is, and have a sassy sense of humor.