Why do people dream that they have gone to the toilet when they have an urgency to urinate during sl

There is an old saying that the formation of dreams is the fulfillment of wishes, but this obviously does not summarize the whole reason for the formation of dreams. There is now a general understanding that dreams are formed to protect sleep (dream activity in early childhood is beneficial to brain development and experience formation, which is another issue). There are two main factors that threaten sleep, one is the strong psychological conflict in the subconscious, and the other is the physical or pathological sensation of the body.

Thinking during the day and dreaming at night refers to the first type, so that the suppressed conflict or desire can be satisfied or vented in the dream, so that the psychological state temporarily tends to be balanced, so as to protect a stable sleep. Dreams that arise because of the urgency to urinate or press on your chest belong to the second type, where the dream creates a false appearance for you, and the problem has been solved to help you continue to sleep peacefully. The mechanism is actually similar to the first one, but sometimes dreams can't hide strong stimuli with mental or physical problems, so we wake up.

Then why do adults dream of going to the toilet without wetting the bed, while children pee.