Schwab’s Teen Investor Account takes a joint-ownership approach but still grants the teen independent login access and trading authority. In both cases, parents can monitor activity and retain ultimate oversight responsibility, yet real-time supervision of buys and sells is off the table.Now Fidelity and Charles Schwab ( NYSE:SCHW ) have taken a bolder step. Both firms recently rolled out dedicated teen brokerage accounts aimed at kids as young as 13. Fidelity’s Youth Account lets the teen become the sole o ...