That show how little you know about managing money. She has to pay taxes on that money when she takes it out, so taking it all out at once would result in a huge tax burden. It is meant to be supplemental income for her retirement and as such is none of your business.

Quit giving her advice. If she pulls it all out, she'll be absolutely SLAMMED with taxes. If she retires before she's 70, she'll probably need to take SOME of it out to live on. Who is advising her not to touch it until she's 70? Maybe she or you are confusing it with thee rule that you HAVE to take some of it out starting at 70-1/2.

She really needs to look at her tax situation to know when and how much to take out. Once she reaches 70 and one half years of age she will have to take a required minimum distribution each year and pay any applicable taxes.