Depends. According to DOGE, voter registration databases have people listed as 150 years old or deceased people receiving monthly government checks. Obviously a different govt than TFA, but govt databases are no less prone to inaccurate data. They are still run/managed by humans regardless of the govt in question
That DOGE info was a very small portion of the data and considering who it came from you have to take even that with a grain of salt. There's always going to be inaccuracies in any dataset, no avoiding that.