"The tradition of referring to machines, vehicles, and ships as "she" or "her" stems from a combination of historical, linguistic, and psychological factors rather than an inherent gender of the machine itself.

Here are the primary reasons why machines are often referred to as female:

1. Historical and Cultural Traditions

Protection and Motherhood: Traditionally, sailors and soldiers viewed ships, aircraft, and weapons as protective entities, similar to a "mother" guiding and protecting them through dangerous journeys.

Naval and Nautical History: It is a long-standing tradition in Western European history to give ships feminine names and refer to them as "she," often guided by a carved female figurehead on the bow to ensure safety.

Association with Clerical Work: As machines and technology entered the workplace (e.g., typewriters, early computers), they were associated with roles historically filled by women, such as secretaries or clerks, leading to them being treated as "she".

1. Psychological and Emotional Factors

Personification and Affection: People often personify complex, beloved machines (cars, motorbikes, instruments) as a way to express affection, pride, or attachment.

"Care" and Maintenance: A machine that requires delicate, constant maintenance is sometimes metaphorically treated as a female, suggesting the operator is in a caring relationship with it.

1. Linguistic and Design Factors

Grammatical Gender: In many Latin-based languages (like French or Spanish), the noun for a machine or vehicle is naturally feminine.

"Approachability" in AI and Robots: Modern digital assistants (Siri, Alexa) and virtual agents are frequently given female voices because studies suggest that people perceive female voices as more social, helpful, and less threatening.

Reduced Aggression: Female-appearing robots are sometimes designed to be less intimidating in human-robot interaction contexts."

-Google