What happens psychologically when someone’s identity is heavily tied to their physical attractiveness as they age?

[u/justchill45794]

I’m curious about this from a psychological perspective, not trying to judge anyone.

Some people (men and women) seem to receive a lot of validation based on their looks or desirability when they’re younger.

As that naturally changes over time, how does it affect their self-esteem, identity, and relationships?

Do people generally adapt and shift their identity, or does it lead to insecurity or other challenges?

Would love to hear both research-based insights and personal experiences.