If one of the stars is a red dwarf, then the radiation from that planet will regularly kill off any life that happened to get started.
If the planets are in stable orbits too far or too close to a single star then life appears impossible, from what we know of our own solar system. Even if life is able to get started under water in iced over planets, then those life forms will have no access to fire and will most likely not evolve past dolphin-like intelligence.
If a planet happens to be in a favorable orbit around a single star, then whatever intelligent life might start there will soon devolve to the point where thy consider Lady Gaga music and Superhero movies as adult entertainment. From there it is not too long to Idiocracy and societal collapse.
Wow. That’s pretty... amazing. You went from the impossibility of life, to life barely sentient to life suffering a moral and societal collapse in just a few paragraphs.
Remarkable.