Can someone tell me why they think breast milk is better to give a baby than formula please?

There are many
reasons why breast milk is superior to the use of formula for infant nutrition.

Breast milk includes antibodies the mother has developed over the years of her life.
Passing these on to the infant provides initial protection against various types of infectious
illnesses.

Babies who have been breast fed show significantly lower rates of
illnesses such as middle ear infections, diarrhea, upper respiratory tract infections, and
urinary tract infections. Breastfed babies seem much less susceptible to SIDS (Sudden Infant
Death Syndrome).

Breastfeeding seems to reduce the chance of the child later
developing diabetes, obesity and may help to reduce the risk of developing allergies.

For all of these reasons, breast milk is a better option whenever
possible.

href="https://en.wikipedia.org/wiki/Breastfeeding">https://en.wikipedia.org/wiki/Breastfeeding