There is no legal age limit for dating, but there are laws that define the legal age for sexual activity, according to Avert.com. This law, called the age of consent, determines when a young person is capable of making a mature decision regarding consensual sexual activity.
Age limits vary internationally, and the laws are often complex with regard to certain sexual activities. For example, in 2008, Canada raised the legal age of consent from 14 to 16 but still enforces 18 as an age of consent for unmarried individuals engaging in anal sex, according to The Society of Obstetricians and Gynaecologists of Canada. It is also illegal for anyone in a position of authority, such as a teacher, coach or family member, to engage in sexual intercourse with a person under the age of 18.