If we have full automation of basic needs fulfillment, powered by sun and carried out by robots, then everyone has more time to have fun. The definition of fun will adapt. Probably get on a new planet and die fighting local fauna will be what people will resort to. Why not? Society will keep supporting individuals, especially when people with the same interests will be discoverable so easily. Sounds like heaven to me. Humanity can do it! Don't forget that mentality will keep evolving