However, we can look at some statistics and make some educated guesses:
* Pet ownership is common: Studies suggest that around 56% of households globally own pets. This means a large portion of the world's population lives with animal companions.
* Cultural differences: Pet ownership varies significantly across cultures and regions. Some societies have strong traditions of pet ownership, while others may have less common practices.
* Urban vs. rural: Urban environments often have lower pet ownership rates compared to rural areas, due to factors like limited space and stricter regulations.
* Economic factors: Pet ownership can be expensive, so economic status can influence who chooses to own pets.
Considering these factors, it's safe to say that a significant portion of the world's population does not own pets. However, without reliable global data, it's impossible to give an exact number.