That example.com and www.example.com can go to different places? Why would you want to force anyone to run web traffic on their bare domain? mail goes to mail.

That example.com and www.example.com can go to different places? Why would you want to force anyone to run web traffic on their bare domain? mail goes to mail.example.com voip goes to voip.example.com vpn goes to vpn.example.com Why should www be any different?