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.
Plymouth Colony
Adolescence was not a recognized phase of life in Plymouth colony, and there was not a single rite of passage that marked transition from youth to adulthood. Several important transitions occurred at various ages, but none marked a single "coming of age" event. As early as eight years old, children were expected to begin learning their adult roles in life by taking on some of the family work or by being placed in foster homes to learn a trade. Most children experienced religious conversion around the age of eight as well, thus becoming church members. 
Orphaned children were given the right to choose their own guardians at age 14. At 16, males became eligible for military duty and were also considered adults for legal purposes, such as standing trial for crimes. Age 21 was the youngest at which a male could become a freeman, though for practical purposes this occurred some time in a man's mid-twenties. Twenty-one was the assumed age of inheritance, as well, although the law respected the rights of the deceased to name an earlier age in his will.