Robinhood Markets is betting its Gen Z and millennial clientele are as eager to send out for delivery of a wad of cash as they are to order pizza or a pint of ice cream. The brokerage is joining with food-and-drink delivery app Gopuff to allow customers to withdraw cash from their Robinhood bank accounts and have it brought right to their door. For a $6.99 delivery fee -- or $2.99 if they have more than $100,000 in assets across their Robinhood accounts -- users can skip the ATM and have money delivered in a sealed paper bag while they are at home.