Accounts and Contacts related fields

Accounts and Contacts related fields

When I create a "Contact" from within an Account record, why does the name, email and phone not automatically transfer over? 
Right now, when I create a Contact from within an Account, I have to open a 2nd tab on my browser and toggle back and forth to manually copy the contact info over. 

How do I get that info to auto-populate into a Contact from within an associated Account?