What is the 'Relationship' field for in Android Contacts? In Android Contacts, you can add a field called relationships.
What is it used for and does anyone even bother putting it in?
It is meant for your relationship with contact

After a relationship is added, you can call, text, or email the person using their nickname.... After the nickname is added, you can contact them by saying things like &quot;Text my sister&quot; or &quot;Email my mom.&quot;

Some typical fields from Google contacts app in screenshot (you can define a custom field too)

In example below, I have added child with nickname of XYZ. If I use Google assistant I would say call XYZ