Generally speaking, babies can start using pull-up pants before they can crawl, between about 6 months and 12 months of age.
It should be noted that each baby is different in growth and development, and whether it is suitable for using pants needs to be determined according to the baby's own situation and habits. At the same time, the use of pants should be based on the comfort and needs of the individual, rather than the pursuit of age or weight standards.
In addition, choosing the right size of pants is very important for your baby's comfort and health. In general, parents should choose the right size based on their baby's weight and waist circumference. When buying pants, parents should carefully read the size table and instructions to ensure that they buy the right product for their baby.