Catcher in the Rye specifically has a character that accuses others of superficiality but is wrong. The Great Gatsby shows how the accusation of superficiality can be reversed. Each of these works is nuanced in how they relate to this topic. You can also recommend a work for someone to read not because you agree with it, but as a point of disagreement.

I dismiss those like Aristotle’s viewpoint because of the assertion that their youth are particularly superficial and causing the moral decay of society, but the moral decay is always happening under the leadership of the elder generation making those claims. The real thread here is how those who fail and age and run out of time to correct the world before they go have been quick to lash out at bon vive in the naïveté of the youth. It’s reactive nonsense, bitterness in the face of the void