Most people over 25+ have at least 1 child....some have multiple and with multiple baby daddies.
It's due to our community and being accepting of women and men with kids outside marriage. Sometimes we encourage it. Actually in the black community...and Hispanic I believe...u would be looked at as weird as not having a child by 30. People would think u infertile, gay or lesbian, selfish, career man or woman who is selfish and don't want to add to ur family, or u just want to be immature and not deal with the growing up and raising a child and having to sacrifice.
If u date a woman with kids...ask about the fathers. Baby daddy drama can be a lot to deal with. If u don't have biological kids but want them...make sure she is willing to have a child for u. If not...u may have to find another woman...unless u OK with not having any kids of ur own. Make sure y'all on same page about kids, finances and both of your desires. During dating, make sure u treat kids with love and respect almost like their ur step kids. Remember they come with her as a package deal. They are a part of her and they should be. Watch how she treats her kids and how she is as a mother. It may tell u some things about her.