Age Limit
Unfortunately there is an age limit of
18 to trade on the stock market, at least you need to be 18 to open your own brokerage account. There are ways to get a parent to open an account and you then trade with their account, this is where the
parent is the custodian of the account (they get to see how well their child is doing and get monitor their trades!) and to do this the child must be at least
13.
Other options
If you are under 18 and really want to find out what trading shares is about then I recommended you open a
practice account, these accounts are free to open and you use virtual money to trade with meaning there is no financial risk involved.
Wall Street Survivor even offer real cash prizes for the best traders even though you are not using any of your own money!