"poor people shouldn't be able to afford food because I'm irresponsible with my money"
.... That's what this sounds like.
If you're not "poor enough" to need snap, and you can't afford to buy whatever food you want, within reason, then either, you need snap and you're in denial, or you need to learn money management.
Snap recipients are forced to spend the money on food, since that's the only place that money can be spent AFAIK.... So they're forced to be responsible with their food money. They can't use the funds to get drunk at the pub and stumble down the street picking fights and ending up in the drunk tank.