and last updated 2021-08-02 17:39:37-04 TULSA, Okla. â There are over 7,000 children in the foster care system here in Oklahoma and 48 percent of those children are ages 6 to 17. 2 News Oklahoma went in-depth to take a hard look at Oklahomaâs foster system and met one woman who is making a big impact. "I have my 29th right now," said Keil Miller. Sheâs 26. She first opened her heart to foster care while she was still in college. âI was 21. It was March of my senior year of college. Going into finals, I had a friend of my sisters who had lost custody of their kiddos and they asked if I would do a kinship placement," said Miller.