When your toddler girl or toddler boy refuses to potty train the best thing to do is to back off of the potty training for awhile.
Keep or put the child back in diapers and then try again in a few months although you can and should still encourage use of the potty.
You can also put the child in underwear or panties and when they wet the panties or underwear they will feel wet and not like the feeling.
Then gently encourage them to get to the potty and they can try again.
Never tell her that diapers are for babies as that is not true as diapers are for all ages.
She should never be ashamed for wearing diapers but continue to encourage her to use the toilet and if she poops in the diaper try putting the poop in the toilet and have her flush it and that way she learns that poop can go in the potty.
Some toddlers and even girls take until age 3 and 4 years old to grasp using the potty properly so you have to be patient.
Whether or not you should put your daughter back in diapers depends on why she needs diapers and her age.
If you're trying to potty train your daughter and she's 4 or under and the potty training is not working then yes you should put your daughter back in diapers and try again a few months later.
Although some kids and even girls potty train before age 4 years old it's not uncommon for a girl or even boy to not potty train until age 4 or a little over their 4th birthday.
A child will actually go to the toilet eventually on their own even if you don't potty train them.
Not every kid potty trains at the same time but you can put your daughter back in diapers and then try again later.
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.
If your daughter is older and needs diapers for wetting her pants or for bed wetting then yes you can and should put your daughter back in diapers to keep her pants dry and her bed dry as well.