Legal Age Requirements by Country: Driving, Voting, Drinking, Marriage

How old do you have to be to drive a car, vote for your leaders, buy a drink, or get married? The answer depends entirely on where you live. Legal age thresholds reflect a society's values about maturity, responsibility, and protection. Here is a comprehensive look at how age requirements differ across more than 20 countries.

Driving Age

The minimum driving age ranges from 15 to 18 across the world:

Voting Age

Most countries set the voting age at 18, but there are notable exceptions:

The global trend is toward lowering the voting age. Several countries including Germany, the UK, and New Zealand have active campaigns to extend suffrage to 16-year-olds.

Drinking Age

Alcohol purchase and consumption laws show enormous variation:

Marriage Age

Marriage age laws are undergoing rapid reform worldwide:

UNICEF estimates that 12 million girls are married before age 18 each year globally. The trend is toward raising and enforcing minimum ages, with many countries eliminating exceptions for parental or judicial consent.

Age of Criminal Responsibility

When can a child be held criminally responsible? This varies dramatically:

Other Age Milestones

Why Ages Differ So Much

Legal age thresholds reflect complex cultural, historical, religious, and practical considerations. Countries with lower driving ages (like the US) often have geographic reasons — rural areas require mobility. Countries with lower drinking ages (like Germany) may have different cultural relationships with alcohol. Marriage ages reflect ongoing tensions between tradition and human rights standards.

These numbers are not fixed — they change regularly as societies reassess the balance between youth autonomy and protection. Use our age calculator to check your exact age and see which milestones you have passed. For more on how age shapes legal rights, see our age milestones guide and retirement age comparison.

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