In the kids cartoon Arthur, Arthur’s father David Read had Arthur at around 19 years old.
How do I know this? In the episode “DW aims high”, David tells his kids that he was Arthur’s age when Neil Armstrong landed on the moon. Armstrong landed on the moon in July of 1969 and Arthur is pretty consistently depicted as being eight years old, so David must’ve been born sometime around 1960 or 1961. Arthur premiered in September 1996 and since Arthur was around eight years old then, David was around 27, having been born around 1960. This also means that at the time of Arthur’s birth eight years prior, David was 19.