1) The teenager could feel freer to do things they were restricted from doing in school, 2) The teenager could be held responsible for finances since they are now a legal adult, and 3) The teenager will be held responsible in their job/occupation and can be charged as an adult if there are integrity issues.
Explanation:
1) drugs, alcohol, etc.
2) Paying the phone bill, car insurance, gas, etc.
3) Integrity issues include embezzlement, fraternization, and other policies that vary between occupations.
