What concerns does Sancho express about Don Quixote?

Sancho expresses concern about Don Quixote's safety primarily because he often finds himself in precarious and dangerous situations during their adventures. This concern arises from Sancho's awareness of the risks that accompany Don Quixote's chivalric quests, which often involve battling imagined foes or engaging in adventures that tend to escalate into potentially dangerous scenarios. Sancho, as a loyal squire and friend, is deeply invested in Don Quixote's wellbeing and recognizes that his idealistic pursuits can lead to real physical harm, which naturally causes him anxiety. His protective instinct underscores the bond they share and illustrates the depth of his character as both a pragmatic realist and a supportive companion.