Laws against minors dating adults
In 49 states, adults (18 years of age and older) cannot legally take part in sexual conduct with minors (17 years of age and under). You can legally: hold hands, talk, stay the night at each other homes, go to dinner, etc. They cannot arrest two people for going to dinner as friends (never admit to dating).
Alberta, Manitoba, Ontario, Quebec, Saskatchewan, and Prince Edward Island have the age of majority set at 18, while in British Columbia, Yukon, Northwest Territories, Nunavut, Newfoundland, Nova Scotia, and New Brunswick the age of majority is 19.
With respect to sexual conduct, the majority of states now set the minimum age of consent (the age at which any person can legally engage in sexual conduct with anyone of the same age or older) at 16.
HOWEVER, this varies quite a bit, so you should look up what the actual law is in your state.
The ages of criminal responsibility and consent, the age at which school attendance is no longer compulsory, the age at which legally binding contracts can be entered into, and so on may be different from one another.
In many countries, including Australia, India, Philippines, Brazil, Croatia, and Colombia, a minor is defined as a person under the age of 18.
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Free association is a right of all people, regardless of age.