What were three reasons why Europeans joined the crusades?

Europeans joined the Crusades for a variety of reasons, including religious fervor, as many sought to reclaim the Holy Land from Muslim control and believed it was their duty as Christians. Economic motivations also played a role, with opportunities for wealth through plunder and trade enticing many participants. Additionally, the Crusades offered a chance for adventure and social mobility, particularly for knights and younger sons who sought to gain land and status.