In "Semi-Prominent Negro" W Kamau Bell talked about his white wife being in this situation re their children. There's even a book on it now: Chocolate Hair Vanilla Care: A Parent's Guide to Beginning Natural Hair Styling https://www.amazon.com/dp/1500666041/ref=cm_sw_r_cp_apa_i_lYkCCb03RXBZ6
We've had a similar situation, and my wife and I found the book "Chocolate Hair Vanilla Care" very helpful. I think there is a website/blog related to it as well. https://www.amazon.com/Chocolate-Hair-Vanilla-Care-Beginning/dp/1500666041