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1. Children don't have to start school when they are five.

2. Everyone doesn't have to stay at school until sixteen.

3. Men  have to do military service.

4. You have to be sixteen to get married.

5. You have to have your parents permission to get married before you are eighteen.

6. You have to be eighteen to vote.

7. Not everyone with a job has to pay taxes.

8. You don't have to have a license for a TV.