This is categorically bad advice. Anyone that has an obese friend that’s into baking knows why. It’s very easy to make incredibly unhealthy and calorie-dense food at home.
I understand the sentiment but there is nothing about the process of making your own food that makes you a more healthy person. It all depends on the ingredients and the amount.
It’s obviously better to eat healthy takeout every day than it is to cook home made french fries for dinner.