When a kid wants to wear a poop diaper it's because the kid enjoys the feeling of poop in his or her diaper.
A lot of kids around toddler age go through a phase of not wanting to have their diaper changed and also some just love the feeling of poop in the diaper.
It's normal as your toddler has gotten used to pooping and peeing in their diaper and while some may hate diapers and hate being in dirty diapers or wet diapers the fact is that some toddlers or kids just love the feeling.
Pooping in a diaper and peeing in a diaper feels much different than pooping in underwear or peeing in underwear.
Eventually your toddler will get over this phase but until then all you can really do is just change the poopy diaper whether or not he or she likes it.
Most children DO NOT CARE if their diaper is full.
They want to keep doing what they're doing, and they don't really understand why they should stop for poop.
And they will lie in order to be able to keep doing what they're doing.
The average age for potty training kids is between 18 months to 2 years of age.
That is for most kids who are ready to potty train at those ages.
Some kids are ready to potty train and get out of diapers as early as age 18 months and are fully potty trained by 2 years old.
The child may still need to wear diapers at night for bed wetting but they should be able to go all day without a diaper.
Some kids may not potty train and be out of diapers until age 3 years old to as late as 4 years old.
A kid will eventually potty train when they are ready.
It's normal for a kid to need to wear diapers for bed wetting from age 3 to as late as age 8 years old and even older.
Some kids will continue to wet the bed for quite awhile and it's normal and some kids may wet the bed until age 17 or 18 years old and some people wet the bed all their lives and that is also normal.
Forcing potty training too early can be harmful to the child's health because they may try to hold in their poop or pee and that can lead to kidney and bowel issues.