For instance: age of sexual consent, age for legally drinking alcohol, age for driving, age for voting, age for participating in pornography
Depending on the place, each of those requires a different minimum age. Why is that? Are some activities “more adult” than others? Using USA as an example: legal drinking age is 21, legal driving age is 16, age of consent varies between 16-18.
Not asking about different countries/states having different ages, but any single place having different ages for different adult activities
Not who you replied to, but I also had no interest due to excellent role models in my family for what NOT to do. I have had 1 alcoholic beverage my entire life, on my 21st birthday, and it was completely lackluster.