The federal government only keeps enough savings on hand to pay a few months of social security payments, because it is more than $35 trillion in debt. The funds for payments come out of the paychecks of today’s workers. After Louisiana becomes independent, Louisiana’s government can manage this transfer from taxpayer to recipient as well as the federal government does.
The same could be said for federal pensions, although perhaps some federal pensions have real assets (not just IOU’s from Congress). Those assets, like all federal assets, would be divided among the states that withdraw from the Union, in return for the willingness of those states to take their share of the federal debt and federal liabilities.
Because voters from the East & West Coasts elect politicians who spend too much, the ability and willingness of the federal government to meet its promises is questionable. Louisiana’s government is a more dependable source of funds.