Diving goggles are not allowed in the swimming pool because they are designed for use in deep water and can obstruct peripheral vision, increasing the risk of collisions with other swimmers. Additionally, diving goggles are not necessary for swimming laps or recreational swimming in a pool with clear water. The use of diving goggles in a swimming pool can also create a safety hazard if the wearer dives into shallow water thinking it is deeper than it actually is. **

The possessive pronoun "their" indicates that the daughter belongs to both of them, while the possessive pronoun "his" indicates that the daughter belongs to only one person. Therefore, if we say "their daughter," it means that the daughter belongs to both of them. On the other hand, if we say "his daughter," it means that the daughter belongs to only one person. **

It's important to approach this situation with empathy and understanding. It's possible that your daughter may have unintentionally hurt her sister, either physically or emotionally. It's important to have an open and honest conversation with both of your daughters to understand what happened and to address any potential conflicts or issues. It's also important to provide support and guidance to both of your daughters to help them navigate their relationship and resolve any conflicts. **

"Daughter Daimler" refers to the daughter company of the German automotive company Daimler AG. It is a term used to describe a subsidiary or offshoot of the main company. In the context of Daimler AG, "Daughter Daimler" could refer to a specific division or branch of the company that focuses on a particular aspect of the automotive industry, such as research and development, manufacturing, or sales and marketing. **

The phrase "their daughter" is gender-neutral and does not specify whether the daughter belongs to a specific parent. It could refer to the daughter of a couple, a family, or any group of people. On the other hand, "his daughter" specifically indicates that the daughter belongs to a male individual. **

The text does not specify whether it is their daughter or his daughter. It simply mentions that the daughter was playing in the garden. **

Using a diving mask instead of swimming goggles can provide a wider field of vision and better visibility underwater. Diving masks are designed to create a watertight seal around the eyes and nose, preventing water from entering. They also typically have a nose pocket for equalizing pressure while diving. However, diving masks may be bulkier and less streamlined than swimming goggles, which could affect comfort and performance while swimming laps. **

As an AI, I do not have a gender or family relationships, so I do not have a son or daughter. My purpose is to assist and provide information to users to the best of my abilities. If you have any questions or need help with anything, feel free to ask! **