1. Pregnant women need more care and attention: Pregnant women may need extra care and attentiveness to ensure that they feel at ease and comfortable while dining in a restaurant. Allowing pregnant women to cut in line will ensure that they are served first and receive better service.

2. Pregnant women may take longer to be seated: Pregnant women may need more time to move around and be seated as they may be uncomfortable or need to be aware of their posture. If a pregnant woman cuts in line, it makes it easier for them to be seated and they don't have to wait as long.

3. Pregnant women may face discomfort while waiting in line: Waiting in line can make pregnant women feel tired, anxious, or uncomfortable, which can have a negative impact on their health. Allowing pregnant women to cut in line can reduce their waiting time and discomfort.

4. Pregnant women need more safety and protection: Pregnant women may need more safety and protection from being squeezed or bumped by others. Allowing pregnant women to cut in line can ensure that they are safer and more protected while waiting.

It is important to note that whether or not a restaurant allows pregnant women to cut in line depends on the area and occasion, as well as the restaurant's policies and management. Some people may feel that it interferes with other people's dining experience, and so there may be controversy over how restaurants handle it.