* Bees are insects: They have very different senses and needs than mammals like us. Milk is a substance designed for mammals, and bees have no evolutionary reason to be attracted to it or fear it.
* No nutritional value: Milk offers no nutritional value for bees. They get their food from nectar and pollen.
* Potential harm: Milk could actually be harmful to bees. It could cause them to become dehydrated or even attract harmful bacteria.
So, the idea of bees being afraid of milk is simply a misconception.