Why does Superman wear his Underwear on the outside?

Superman will find his red underwear in Action Comics #1000 - Polygon

The Superman Legacy, Superman finally learned to wear his

Secrets of Superman's Underwear by techgnotic on DeviantArt

24, December, 2020

Gregg Schigiel's Pix: Family-Friendly Heroism [Interview]

Does Superman wearing a underwear ? - Superman - Comic Vine

Secrets of Superman's Underwear by techgnotic on DeviantArt

Do Geese Get Goose Bumps?: & More Than 199 Perplexing Questions with Astounding Answers : Bathroom Readers' Institute: : Books

Superman Finally Gets His Red Underwear Back in Action Comics #1000

qph.cf2.quoracdn.net/main-qimg-b357f9b403336b752cd