Please don't. That's just gonna make them want McDonald's even more and fiend for the crack they serve.
The better option would be to make what you have at the house seem so appealing that they just say "FUCK McDonalds" and learn about real, actual food.
The better option would be to make what you have at the house seem so appealing that they just say "FUCK McDonalds" and learn about real, actual food.