In germany there is a labelling system called "Animal Welfare Labelling" where consumers can choose what they buy. https://de.wikipedia.org/wiki/Tierwohllabel

In germany there is a labelling system called "Animal Welfare Labelling" where consumers can choose what they buy. https://de.wikipedia.org/wiki/Tierwohllabel https://de.wikipedia.org/wiki/Tierwohllabel For eggs this is even mandatory: https://de.wikipedia.org/wiki/Eierkennzeichnung https://de.wikipedia.org/wiki/Eierkennzeichnung