If you don’t have enough to save for your children’s college funds and your retirement, then your retirement takes precedence.
As explained in Suze’s book "Women & Money," women think they are actually helping their children by paying for their college or wedding. It’s a myth. You help your children by saving yourself first. If you retire without ample money to support yourself you will become a financial burden to your children. There are plenty of loans for college but there are no loans for retirement.