Why can't the hotel accommodate more people?

The rationality of the hotel not allowing adult children and parents to live in standard rooms needs to be analyzed in combination with different situations.

On the one hand, hotel room size, number of beds, house price and other factors will affect whether adult children and parents are allowed to live in the same standard room. If the room is small and there is only one bed, the hotel may not allow more than one person to live in the same room. In addition, hotel room prices are usually calculated according to factors such as room size and number of beds. If you want to increase the number of people, you may need to add beds and other supplies, which will increase the cost and management difficulty of the hotel, so the hotel may limit the number of people staying in the same room.

On the other hand, some hotels restrict people from living in the same room for reasons of security and privacy protection. If adult children and parents live in the same room, there may be conflicts between private life and privacy, which will also increase the difficulty and responsibility of hotel management.

To sum up, it is reasonable for hotels not to let adult children live in a standard room with their parents. However, in case of special circumstances, such as emergency or special reasons, the hotel may also consider special arrangements. Finally, whether the hotel allows multiple people to stay in the same room depends on the hotel's regulations and actual situation.