As I sit down to write a check to cover son number three’s auto insurance payment, I realize my bank account is taking another hit. It’s not the first time, and I’m not the only one. Parents like us have quasi-adult children on economic life support. When we blended our families, my husband and I never intended to become the “Bank of Dad & Mom.” When Steve and I combined our seven sons into one family in 2001, the economy was strong. I thought it’d be a breeze to put my two oldest to work when we packed up our home in Chicago and moved south to Atlanta.