We all like to think of ourselves as spring chickens until our knees start sounding like a jackhammer on gravel and we’re shocked to hear the birth year of recent high-school graduates.

When someone asked online, “What’s your ‘I’m old now’ moment?” people shared the instances when they realized their youth was behind them.

Wait, who’s that?

“I have no idea who most of the “celebrities” mentioned on social media are.” – Reddit