Purpose of the 'Contact Information Category' field under Family and Emergency Contacts?

Summary: What is the purpose of the 'Contact Information Category' field under Family and emergency contacts?

Content (please ensure you mask any confidential information): When we navigate from Me > Personal Information > Family and Emergency Contacts > Create a new Contact > Under Relationship section, there is a field named Contact Information Category.

What is the purpose of this field and how to configure the LOV of this field?

Version (include the version you are using, if applicable): 24B

Code Snippet (add any code snippets that support your topic, if applicable):