I doubt SNAP will allow you to buy alcohol, but perhaps it would enable people to use the money they do have towards it.
********************
Here’s how the “work around” works for SNAP recipients to get cash.
They approach you in a grocery store and make an offer.
The general rule is double the price in food for cash.
So $80 dollars in meats purchased would net them $40.
Do you have numbers on how often that happens?