• 19, for N.B.A. players
• 21, at a casino, say
• A casino may have one
• An Easter egg hunt may have one
• Bar bar
• Bar floor?
• Bar restriction
• Bars have one
• Club restriction
• Competition restriction, perhaps
• Little League issue
• Little League membership restriction
• Little League rule
• Little League rules item
• Maturity cutoff point
• National Spelling Bee clause
• Provision for holding certain jobs
• Restriction on children, maybe
• What some amusement park rides have