Welcome to the forum.
Check your capitalisation. You have inexplicably capitalised words like world, people and parents.
Check the spacing around your punctuation. Do not put a space before a full stop, comma, semi-colon, question mark or exclamation mark. Always put a space after those punctuation marks.
Check your use of the singular and plural. In your first paragraph you have "Children is" and "parents who have children is". Both are incorrect.
"Childrens" is not a word.
When you sort out those things, we can look at the actual content.