[yonif]

but I thought they all changed it to 21.

There is a federal law that states you must be 21 to drink.

[HurkinMcGurkin]

There is a federal law that states you must be 21 to drink.

No there isn't.

[aristeides]

There is a federal law that states you must be 21 to drink.

What I think the federal law does is to deny federal funding to states that don't enact a drinking age of at least 21. That's not the same thing.