The phrase works as internet shorthand for hindsight, especially in gym and fail videos where the wrong choice is obvious in retrospect. As a short spoken clip, it fits the quick punchline style of short-form video, where a single line can comment on a whole scene without extra explanation. Its appeal comes from that bluntness: it names the bigger, better option too late, which makes everyday mistakes feel relatable and funny. That simple regret joke keeps it useful for reaction edits, pranks and workout content.