If the whole universe happened by a cosmic accident, there's no one else around to care that it's mostly devoid of life. It's still entirely possible that life

If the whole universe happened by a cosmic accident, there's no one else around to care that it's mostly devoid of life. It's still entirely possible that life is a huge anomaly, and it only seems normal to us because we're around to witness it. But random side question: is Mars considered "earth-like"? Or are these Earth-like planets even closer in composition and temperature to Earth?