The bond between two or more Mandalorians is an important part of the culture in Star Wars. In The Mandalorian, Din Djarin and Grogu are a prime example of how important a Mandalorian's clan is to them. Din lets Grogu train with Luke Skywalker because he knows it might be best for him, even though it wasn't the choice he wanted to make. When a Mandalorian is part of a clan — which often also means part of a family by blood or adoption — they will do anything to protect their own. This is one of the most tragic things about the story of Sabine Wren, a Mandalorian warrior who lost everything twice.
Source：https://www.cbr.com/ahsoka-sabine-family-lost/
