I've often thought that The Beach Boys were this perfect microcosm of the American Dream gone awry. A "happy" suburban postwar family, by all outward appearances. The kids are on the high school football and track teams. But there is a Lynchian creepiness beneath the surface, thanks to Murry.
The kids form a group with wholesome image. And then there are the drugs, the divorces, therapy, the Sandstone sexual retreat, rubbing elbows with serial killers, marrying your cousin's daughter, ODing on drugs. Brian may have been the first to check out, under other circumstances, but he has endured.
It is amazing that they did so many health and safety songs, considering.