Granny doesn’t like your soup anymore. Maybe it’s not your fault
How much we enjoy a meal is a complex phenomenon that relies on multiple senses (including sight, smell, taste, and touch) working together. When these senses weaken with aging, food taste may change. One good example is the decline in sense of smell with age, which can signficantly alter how food tastes.
So, maybe it's not your fault that Granny doesn't like your cooking anymore, and it's not her fault either!