Why to use cloth diapers, if disposable diapers are so easy for use and keep baby's skin dry?

Psychological factors
Using disposable diapers, we do not allow our babies to understand normal physical human processes - if baby absolutely will not feel wet after leaking, he will not associate wetness with the feelings of elimination and so he will not learn to associate these feelings until much later (it will be very difficult for baby to understand why he need to do it per pot). Toilet training is an important step on the way to increased competence, confidence, and sense of self. According to the Wall Street Journal, in 1957, 92% of children were toilet trained by 18 months.  Cloth diaper usage at that time was 100%, because Procter & Gamble introduced a disposable diaper in 1991. Today, only 25% of kids are toilet trained by 18 months.  More than half of kids (60%) train at 36 months.  There are about 2% who aren’t trained by 48 months.

Baby's health
There are over 60 chemicals in a disposable diaper. Many of these chemicals are highly toxic. Cloth diapers are soft on baby’s delicate skin.  Babies who are prone to allergies and sensitivities such as eczema and psoriasis, and babies born prematurely are especially sensitive to the petro-chemicals and dioxin used in disposable diapers, making cloth an excellent choice. Also disposable diapers raise the temperature of baby boys' reproductive organs, affecting their development. This may have a negative long term effect on testicular maturation and spermatogenesis, and may facilitate the development of testicular cancer.

Saving of money
Cloth diapers save parents money because they are reusable. This means that cloth diapers can be used multiple times as opposed to disposable diapers, which can only be used once and then must be thrown away (also if you want, you will use them for your second and third baby or you can sold cloth diapers as pre-owned when you will not need them more ). In the long run, this can save parents thousands of dollars. Although you need to regular wash cloth diapers, additional costs for electricity and water will not be appreciably because cloth diapers you can wash together with other baby's clothes, but wool diaper covers should be only air-dried in a well-ventilated area after use. The moisture from the nappy does not remain in the wool and cover will not smell at all after airing. (Advisable to wash wool cover every 3-4 weeks).
For regular use, you need 10-25 cloth diapers and 2-4 wool diaper covers.

Healthy environment
Natural diapering is an ecological alternative. A single diaper-age child produces nearly 1,000 kilos of disposable-diaper waste that ends up in landfills. Also wastewater from the manufacturing of disposable diapers often contains dioxin, solvents, biocides, and even heavy metals. Therefore by choosing reusable diapers you will protect the environment for your child’s future.