Make default location non-mandatory in product families

We have products that we manufacture ourselves. We have entered the default bin locations for these products, and the production team assemble the products into this location. Each SKU has a different bin location. These products are part of a family. Because the default location at the family level is a required field, whenever we make a change to the family, it overrides all the individual SKU default locations with the family default location. To fix this, suggest that default location is a non-mandatory field and that if it is blank at the family level, it does not override all the individual SKU default locations when the family is updated.