Hello, I was reading the Young Characters page in reference to a character I have just to see if Paizo Pathfinder had any specific rules regarding young characters. This line in particular is significant.
"A young character has a +2 bonus to Dexterity and a —2 penalty to Strength, Constitution, and Wisdom. (A young character's potential inexperience and awkwardness are represented by having only the skill ranks of a 1st-level character rather than taking a penalty to Intelligence or Charisma.)"
Young people are quick but also not fully developed physically, so the DEX, STR, and CON adjustments makes sense. But the WIS penalty to me doesn't.
Personal case- I have a young aasimar character. Aasimars reach adulthood at age 60, and mine is 40 years old (about 12 in human years). This would make her a child by any personal consideration (I couldn't find any official age ranges on non-core races). However, wisdom by most definitions is the accumulation of life experience, and considering she's older than any other character is my party, despite being a "child", wouldn't she realistically have as much, if not MORE wisdom than the other characters?
This applies to other races with late adulthoods as well, such as elves and, if you want to stretch it, gnomes and dwarves.