What is another word that can be used in the place of children?

The best substitute for "children" depends on the context. Here are some options, categorized by meaning:

General:

* Kids (informal)

* Youngsters

* Little ones

* Minors (legal context)

* Offspring

* Progeny

Specific Ages:

* Infants (babies)

* Toddlers

* Preschoolers

* Schoolchildren

* Teenagers

* Youth

Figurative:

* Wards (referring to someone responsible for them)

* Charges (referring to someone responsible for them)

* Posterity (future generations)

Formal/Literary:

* The young

* The rising generation

It's important to choose the word that best fits the tone and meaning of your sentence.