Related:

• The drinking age should be 18. When you're 18 years old you're old enough to vote.
  You should be old enough to drink. Look at who we have to vote for!...
• Nobody knows the age of the human race, but everybody agrees that it is old enough to know better.
• Adult, n.: One old enough to know better.
• ADULT: One old enough to know better.
• Adult: One old enough to know better.
• Middle age occurs when you are too young to take up golf and too old to rush up to the net.
  -- Franklin P. Adam...
• Few things are less enjoyable than being old enough to know better.