There are a few reasons why some people prefer to use margarine instead of butter when baking:
Dietary Restrictions: Margarine is often chosen as a substitute for butter in baking when someone has dietary restrictions or preferences. Margarine can be made without dairy, which makes it suitable for individuals who are lactose intolerant or follow a vegan or plant-based diet.
Lower Cholesterol: Margarine is typically lower in cholesterol and saturated fat than butter. This can be appealing for those who are watching their cholesterol levels or trying to reduce their intake of saturated fats for health reasons.
Texture and Moisture: Margarine has a higher water content compared to butter, which can contribute to a different texture and moisture level in baked goods. Some people prefer the texture achieved with margarine, finding it to be lighter or more tender.
Price: Margarine is often less expensive than butter, which can make it a more economical choice, especially for large-scale baking or when butter prices are high.
It's worth noting that personal preferences can vary, and some bakers may still prefer the taste and characteristics that butter brings to their baked goods. It ultimately comes down to individual preference and specific dietary or culinary considerations.