In honor of Motherâs Day, we held a family history sweepstakes with Ancestry.com. A Place for Mom readers shared with us why itâs important to learn about family history, and we listened.Now, weâre sharing their top 25 reasons to learn about ancestry with you. âTo know about my family and the history of it all.â -Samantha W. â 2 Learning about family history is important. 3  It is essential to understanding ourselves and basic humanity and diversity.