She might think the child has a bed - wetting problem and wants to avoid messes at night.
If the child has a medical condition that affects bladder or bowel control, like a urinary tract infection or a nerve disorder, the mom would make the child wear diapers for hygiene reasons. Also, during travels or outings where restrooms may not be easily accessible, she might choose to have the child in diapers to avoid accidents.
A common reason is for medical needs. If a child has bladder control problems, diapers are a must. For example, some kids have weak bladder muscles and wearing diapers helps them stay clean and dry.
Maybe your mom makes you wear diapers because of some special medical reasons. For example, if you have a bladder control problem or some other health issues that make it difficult to control your urination. It could also be a preventive measure during a long journey where access to toilets might be limited.
One possible story could be that you might have a medical condition like bed - wetting or incontinence. So your mom makes you wear diapers to avoid messes at night or during the day. It could be embarrassing at first, but she's just trying to take care of you.
I'm not sure specifically what this story is about as the title is rather unclear. It could potentially be about an embarrassing or unexpected situation where the mom was found wearing diapers, but without more context it's hard to say for certain.
One reason could be age - related issues. As people get older, their bladder control might weaken. So, they start wearing diapers. It's a big change for them, but they often do it to maintain their normal activities as much as possible. For example, an elderly person might still want to go out and socialize without the worry of an accident.
Some kids might be attracted to wearing diapers because it gives them a sense of security. Just like a comfort blanket, the diaper's softness and snug fit can make them feel safe and cozy.
One possible reason could be a medical issue. Maybe the teen has some sort of incontinence problem that has recently developed, such as a bladder or nerve disorder. Another reason might be for psychological comfort. If the teen is going through a really tough time, like severe stress or anxiety, the mom might think that going back to the familiarity of diapers could provide some sort of security.
It could be for comical purposes. The idea of the powerful and heroic Harry Potter having to deal with something as mundane and embarrassing as wearing diapers can be quite humorous. It adds a touch of absurdity to the usually serious Harry Potter universe.
It's not extremely common but not unheard of. In some stories, it might be used as a plot device to show vulnerability. For instance, if the character has been through a traumatic event and has lost some control over basic bodily functions, wearing diapers can symbolize her broken state.
It might have felt a bit strange at first. Diapers can be bulky compared to normal underwear.