Within two years, 2018 – 2020 1.4 million EU citizens signed a petition to end the caging of farm animals. As a result, the European Parliament initiated a study conducted by Utrecht University researchers to study how to accomplish this goal.
The research included behavioral biologists, animal scientists, veterinarians and ethicists. Their main focus was on laying hens and pigs. However, they will look into other animals such as bovines used for milk and meat. In order to accomplish their goal to eliminate cages, the researchers must find a way to assist farmers in transitioning from traditional animal housing to more humane housing.
I personally hope that they can reach this goal and that it will spread to the rest of the world. When I raised chickens, they were always free-ranged and had a hen house to stay in at night.