Coming of age
In the United States, teenagers are allowed to drive at 16 in all states except New Jersey, which requires drivers to be 17 and older, and sometimes receive the responsibility of owning their own car. Teenagers may drive at age 15 in Idaho and Montana. At 16, teenagers are also old enough to donate blood and work in most establishments. At 18 one is legally considered an adult and can vote and join the military. The legal age for purchasing and consuming alcohol and recreational marijuana, the latter of which is only legal in the District of Columbia, Colorado, Oregon, Washington, California, Hawaii, Massachusetts, Nevada, and Alaska, is 21. The legal age for purchasing and consuming tobacco products is 18 in most states; 19 in Alabama, Alaska and Utah; and 21 in California, New Jersey, Oregon, Hawaii and Maine. Multiple localities have also raised the minimum purchase age independent of state laws.
Ages of consent in North America
The "position of trust under 18" anti-exploitation rules were expanded in 2005 by Bill C-2 where a judge may choose to term a situation to be sexual exploitation based on the nature and circumstances of the relationship including the age of the younger party, age difference, evolution of the relationship (how it developed, e.g. quickly and secretly over the Internet), the control or influence over the young person (degree of control or influence the other person had over the young person). This passed before the 2008 amendments, and they were not repealed so they are still in effect and can apply towards adults in these situations with young persons over the age of consent and under 18 (16-17).