Squids can't have culture, at least not culture that persists beyond a generation. When it comes time to mate, all the squids of a species liquid-jet to rendezvous waters for a final orgy. Then they die. The egg-bound young are left to hatch without living parents. Every squid comes into the world without teachers. Anything the sisters, brothers, and cousins learn during their lives and succeed in communicating to their peers is lost when it's their turn to mate and die.