Putting ice cream in the freezer before eating it is not a common practice; rather, it's the standard way of storing ice cream to keep it frozen and maintain its quality. Ice cream is a frozen dessert that contains a high percentage of water, which makes it susceptible to melting at room temperature or higher. By storing it in the freezer, you prevent it from melting and becoming a liquid.
The manufacturing process of ice cream involves freezing the mixture and incorporating air to create a smooth and creamy texture. When you store ice cream in the freezer, it remains solid, and the cold temperature preserves its consistency and prevents it from becoming a liquid or losing its shape.
When someone takes ice cream out of the freezer to eat, they do so because they want to enjoy it in its frozen, creamy state. It's not typically eaten in a fully melted form unless it's used as an ingredient in a recipe or a milkshake.
In summary, people store ice cream in the freezer to keep it frozen and ready to enjoy whenever they want a cold, creamy treat.