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


Thats amazing. I did not have the awareness at 17 to not drink. I grew up in a house that always had alcohol but drunkenness was pretty rare. Both of my kids struggled with alcohol and figured out pretty early that it could be bad for relationships.
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.