Smoking doesn’t cause cancer, I guess. But we need to drop “teen” from this. Anecdotally many people I know of all ages rapidly descend into narcissism and personality disorders with hugely increased social media use. Linked content [1].

[1] https://www.theverge.com/2024/9/25/24254044/mark-zuckerberg-meta-social-media-teen-mental-health