Unnecessary. There are plenty of .in or .it domains that have nothing to do with India or Italy. It's just a domain name and it's inevitable that people will use it in new ways.
http://en.wikipedia.org/wiki/.in
http://en.wikipedia.org/wiki/.it
CIRA, who manage .ca domains, have stricter rules. They can be found here: http://www.cira.ca/why-ca/ca-101/who-can-register-a-ca/