Solidarity is a multifaceted concept often influenced by personal narratives and cultural contexts. In some cases, it can be distorted by superficial displays, as seen in ‘solidarity-washing’ prevalent in various sectors. Breaking free from this cycle necessitates a fresh perspective. Museums and children offer a unique avenue. A pilot initiative, conducted by the Museum of Communication of Bern in collaboration with Cultural Inquiry, reveals that the minds of children, and in particular those from migrant backgrounds, can offer genuine insights into authentic solidarity. Through the innovative ‘Children’s Board’ methodology, children’s unfiltered thoughts and actions illuminate a path towards a sincerity-based, children-centric approach to solidarity, emphasizing radical vulnerability and genuine care.