He decides to obtain them from a classmate, a girl, who gives Beaver her old doll carriage. Innocently, Beaver sets out for home, across town, pushing the buggy. And then the journey turns into a suburban nightmare. Little girls mock him. When Wally hears what's happening, he fears for Beaver's safety.
Guys always pick on someone who's different.
This could put a curse on our whole family. The episode becomes a meditation on the rigid sex roles of the '50s. The hapless Beaver finally abandons the doll buggy in a ravine rather than suffer further trauma. Ironically, Gilbert passes by, spots the abandoned carriage, and salvages the wheels for his homemade car. That's the only hint of the social revolution that would erupt a decade later.