The minimum age for driving a car is 16 in some states.
voting age
Frequency:
60
%
The voting age in the United States is 18.
drinking age
Frequency:
50
%
The legal drinking age in many countries is 21.
marriage age
Frequency:
40
%
The legal marriage age varies from country to country.
Idiomatic Expressions for legal age
Phrase: legal age of consent
Meaning: the age at which a person is legally considered old enough to consent to sexual activity
Usage: In our country, the legal age of consent is 18 years old.