Historical clue formulations

• Having aged out — 2024-05-11
• Like 20, for Little League — 2024-02-01
• Like a 14-year-old vis-à-vis the Little League World Series — 2019-05-14
• Past the cutoff age — 2016-02-07
• Ineligible for kiddie prices, say — 2010-07-20
• Over the hill — 2006-06-20