Hi DeafTransGirl! Welcome to the forum! I've also always wanted to grow my hair to tailbone length or classic as well! But to answer your question about dyeing your hair. It depends on what kind of dye you are planning on using on it. I dye my hair, and it doesn't cause any damage at all. Because, I take good care of my chemically-treated hair! I have both relaxed and color-treated hair. There is a such thing as people have very long processed hair without it being damaged.