Bonaventure

And lest you think that this ignorance was from negligence, on account of which Mary would be blameworthy, he adds the cause: But supposing him to be in the company, they came a day's journey: because, since the men traveled with the men, and the women with the women separately, it was probable to the father that the boy was with his mother, and probable to the mother that he was with his father. And therefore they were mistaken. …

Commentary on Luke, Chapter 2 ↗