Similarly, if you want to trade futures or forex, you will need to open separate brokerage accounts. (stockbrokers.com)
That is, your parents and brother should each maintain separate brokerage accounts from yours, and then give you the authorization to trade (but not withdraw from) their accounts. (money.stackexchange.com)
Two things — I probably won't ever retire - retire early as I'll continue working on stuff I love that'll prob bring home money, and then secondly I plan on opening up a separate brokerage account at some point too to start investing in outside of the retirement accounts. (budgetsaresexy.com)