Buying textures lets you print on images and texts onto your tori's body in-game.
Even the cheapest texture is pretty expensive, giving one to everyone would cost... let's see, 24 X 10k... 240,000 Toricredits. Or 240$. Even giving them to the leaders would cost 30,000 Toricredits / 30$. They're way to expensive for everyone, maybe leaders later on, but for clan textures i have to say no.