Investor Brad Gerstner said Trump wants up to 70 million children auto-enrolled in the investment accounts "to make sure no child is left behind."

Four financial planners break down how much your kid could really make, where it fits with your 401(k), and the catch parents keep missing.

Investor Brad Gerstner said Trump wants up to 70 million children auto-enrolled in the investment accounts "to make sure no child is left behind."