Legal age
- Adulting
- Age of candidacy
- Age of consent
- Age of criminal responsibility
- Australia
- Coming of age
- Driving age
- February 29
- Gambling age
- Legal drinking age
- Legal status of tattooing in European countries
- Legal status of tattooing in the United States
- Legal working age
- Legality of cannabis
- List of countries by minimum driving age
- Marriageable age
- Regulation of electronic cigarettes
- Retirement age
- School leaving age
- Smoking age
- Suitable age and discretion
- Voting age