What is this minimum age? It depends on the state. If you live in California, the District of Columbia, Kentucky, Louisiana, Maine, Michigan, Nevada, New Jersey, South Dakota, Oklahoma, or Virginia, you can't trade stocks until you reach the age of 18. read more
In the United States, there are minimum ages for many things. The minimum age to purchase alcohol is 21, tobacco 18. Joining the military can't be done until age 18, except in special circumstances. However, there is no minimum age to invest in stocks. read more