In Canada, different provinces have different regulations on the age of minors.
The age of minors in Alberta, Manitoba, Ontario, Prince Edward Island, Quebec, Saskatchewan is 18 years old.
The age of minors in British Columbia, New Brunswick, Newfoundland and Labrador, Nova Scotia, Northwest Territories, Nunavut, Yukon is 19 years old. (Reference: https://www.canada.ca/en/immigration-refugees-citizenship/corporate/publications-manuals/operational-bulletins-manuals/temporary-residents/study-permits/guidelines-on-minor-children.html）