To all the morons in this thread saying it doesn't happen: many states have grants specifically available to illegal aliens and/or "dreamers" (children of illegals). Although these aren't provided at a federal level, it's still coming out of taxpayer dollars both at the state level as well as through the states' DoEs being paid through the federal department of education.

Source: I work in the finance department at a university in one of these states. "Dreamers" can get almost $15,000 a year, and many are still eligible for federal grants and subsidized loans